कक्षा 12 भौतिकी

[00:00:29]Hello son, hello Hello then Hello son, hello Join the class quickly, brother.

[00:01:28]Hi Ok Let go Hello son. Ok. So quickly you guys Join us. You are taking a lot of time brother Yes you guys. You are taking a lot of time. Comment Write your name in the box first.

[00:02:18]Be happy scholar.

[00:02:20]Ok Deepika, that's a very good thing. Good Very Good. Who else is there brother?

[00:02:27]of and And who is the brother?

[00:02:36]So baby pay attention as I I have told you people, right?

[00:02:42]I don't know that I teach class 12th Physics.

[00:02:45]Brother. Chapter Numbers in Class 12 Physics First we are teaching brother. Yesterday we met Kalam Read Kalam's law and superposition.

[00:02:53]Isn't it brother? The concept of superposition has been I taught it in a video lecture yesterday. So Children, pay attention, today's topic is electricity.

[00:03:00]Field. Child, what is today's topic? Yes Electric field. ok chapter number one Class 12th Physics child very good thing Yes brother. All of you join quickly.

[00:03:11]Hi Isn't it? Yes, get signed up. just start I have to give it brother. Ok.

[00:03:19]Please write your name in the chat box.

[00:03:20]Each one is his own. Hello child, attendance is definitely required.

[00:03:23]Try it at least once brother.

[00:03:26]Hello Mr. Please write your name in the chat box.

[00:03:35]ok baby Let go Pay attention, son. So as I said Beta Class 12th Physics First Chapter Number one. Ok? Class 12 First Chapter number one that is electric charge and Field. Electric Charge and Field. In this Today's most important topic is that it is Electric field. Baby what is today's topic?

[00:03:59]Is? G. Electric field. Ok? We Are Going to Study Electric Field Today.

[00:04:04]Right? So the very first topic of today that Is electric field. What child?

[00:04:12]Electric field.

[00:04:16]Electric field ok what are we going to study today Brother, there is the concept of electric field, right?

[00:04:25]Yes, okay, so let's focus on electric.

[00:04:30]What is a field? Electric field What is it called, then you first pay attention to the number Let us give the electric field of the field.

[00:04:38]Formula Child Electric Field Already represented by a capital e Na electric field and you can se Intensity of electric field.

[00:04:47]Electric Field and You Can Say Intensity of electric field is denoted by Capital E. Right? And what is the formula?

[00:04:55]of electric field? that is forced up Charge. That is force up charge. Child Notice the charge here, q, zero, you remember.

[00:05:04]Keep electricity in the entire physics In the chapter we will study a Assume the minor charge.

[00:05:13]Chapters on Electricity in Physics Charge is very important brother. So To study the behavior of the charge What do we do to study?

[00:05:23]What do you charge for one? Let's accept it.

[00:05:25]Minimum charge. That is what is called a test Charge. What do you say sir? Test Charge Clear Child Remember This Word Test First of all, you should understand the meaning of charge.

[00:05:36]Because this word is in class 12 first If the test charge comes on repeatedly, then test Meaning of charge, I said earlier that we charge To study the behavior of an Imaginary charge is considered from Is. Ok. And remember the test charge which The symbol is Q0 for test charge.

[00:05:56]Which symbol is child Q0 Hello son Future Tech India I think you are Sumit No, okay, okay, son, Deepanshu Dwivedi Welcome welcome to all welcome to all child Child, pay attention to the test charge.

[00:06:14]I am going to tell you. The test charge is called q0.

[00:06:17]and it always Does it happen son? It is positive. Test What is the charge always on? would have been positive Is. And son, this is about your test charge.

[00:06:27]I will remind you. Isn't it? of test charge I am telling you about it. separate note Can do. Isn't it? ever asked you this will not go. But that is what you get in Physics.

[00:06:36]This word comes again and again. so what does it Pisces? What does it mean? what does this mean Is there a child? Pay attention. of test charge Meaning we understand. Pay attention. First Point this is minor charge. This is Eminary Charge.

[00:06:55]Ok son, it does not charge in real. You Remember to study the behavior of the charge For this we can imagine a charge from ourselves Let's take it. That is an imaginary charge. Ok?

[00:07:05]Test charge. End symbol child symbol what It happens? What is the G q0 symbol? q0 What is third brother? What is the third Child? Always positive. what baby what is this It is always positive what happens Yes brother, it is positive in nature, okay and Fourth point this is point size what child The point size is very small.

[00:07:28]small size ka hota hai and last son that Is it different what is its electric field Its electric field is zero Brother, you know any charge is yours Produces an electric field around Do you already know the charge production?

[00:07:43]Electric Field Around Itself Right Right? But this is the test charge. thats Why This Does Not Produce The Electric Field Around Itself. i.e. test charge does not have an electric field of its own Is. Test charge of own no electric There is no field. You remember this like this Can. Ok? No one will ever ask the rest It will never be asked in the exam. Ok? Come As I said, today's first The topic is an important topic. that is Electric field. we are going to study Electric field child. ok baby attention The two electric fields are denoted by E and What is its formula? Force Up Charge. Force up charge. ok baby The formula for the electric field is Force Up charges up. Now this story is understand. What things am I going to explain?

[00:08:31]Am I here son? Welcome.

[00:08:35]Yes sir. Hi Krishna Arjun. Krishna Arjun is very happy I am getting it brother, it is a very good thing to see Let's enjoy the [ __ ] Let us go It's done, kids, you guys focus on studying.

[00:08:53]Pay attention and say electric field Equ Force Up Charge, this thing is clear What child, now tell us this electric Home » Science » Chemistry... Difference Between Field and Force Understand the whole condition, like a child.

[00:09:07]Is this some electric field?

[00:09:09]There's an electric field, baby. Isn't it? This is someone What is? G is the electric field. Now this Any charge q in an electric field Charge q0 when entry is made. Pay attention What is the important thing? that the formula is Everyone remembers it. But in the formula It became very important to understand the condition. Condition It is very important to understand. So pay attention here What is left of a uniform electric field? Is.

[00:09:35]When q charge enters in it, then this force on it due to the electric field Seems like Due to this electric field, the But force is applied. Its value is f = q0 * e Clear what child? So from here e If you find the value of then what is e equal to Will you go? q0 is in multiply then divide I will come. Where will it come? G Divide In. clear? What am I telling you, child?

[00:09:58]Pay attention here in this flower or this flower In? What do you mean?

[00:10:02]When charge Q is placed in electric field E Went. When a charge Q is placed in an electric field E If Q is placed on this charge then due to this It takes force. That is F. That is F.

[00:10:14]Clear child? Is this clear? Now come Understand the definition. Now you understand the definition.

[00:10:19]Will come. If the value of q0 in this formula is Do it? 1 coulomb charge. If you are looking for Q0 which test There is a charge, child, keep its value as 1 koolam.

[00:10:28]Then whose value is the electric field?

[00:10:30]evened out? It became equal to the force. Brother In this formula, when q0 i.e. charge If you keep the value one, you will get an electric field The value of which became equal to what? G-Force It became equal to. What does this mean son? When 1 less charge When 1 less charge is added to a Keep it in an electric field. then 1 less placing a charge in an electric field Are. So the force acting on it is the same What do you call brother? Electric Field They say. 1 Experience by charging less Force to be applied. 1 by charging less What is the force to be experienced?

[00:11:06]What is it called? Say electric field. Brother How much force is acting on 1 small charge?

[00:11:14]Is? What is the force equal to? Electric Equal to the field. So what to say to the force?

[00:11:19]Can you? Electric field. So define Do. What is the definition? what is the Definition?

[00:11:27]What will you say?

[00:11:31]What to write? Force Isn't it? You don't understand the electric force.

[00:11:36]Are. Which force is it brother? Electric Force. Isn't it?

[00:11:46]and sorry Electric Force Isn't it an electric force?

[00:12:00]Experience by Experienced By Electric Force Experienced Isn't it a unit charge or you can simply say 1 Write less charge what to write 1 less charge one Test charge is less, isn't it? 1 less test charge is called electric field called electric field child Electric Field Is it done, child? Ok the child is here.

[00:12:43]Did you understand this much, child? Clearly then You pay attention. what is electric Field? Kid Electric Force Experienced by 1 less test charge is Cold electric field. once again you Understand this child. The main thing is son Understanding the condition. Keeping the definition does not work Will work. Pay attention, child. This is an electric The field is the child. This is an electric field Is. Now when someone is in this electric field Charge will enter due to this Electric field at experience force if There is a charge which is entered in an electric field then due to this electric field at experience hai na Electric Force and What is the Amount of force that is F = 2 * E this is the force Understand once again, brother, isn't he the one There is an electric field. It contains q0 charge Making an entry. So this electric field Due to this, force will be applied on it. of that force How will you extract the value? in the electric field You will multiply the charge. ok baby Is this so clear? Now let's look at these questions.

[00:13:53]Keep the value as 1. This charge in Making an entry. This charge in What is the value of the entry?

[00:14:00]1 less. When you put 1 less in it then the force Whose value became equal to? Electric Field. Because if you multiply one by one He will come. So you can say that 1 less 1 less charge by the force which Experience is done with the same electric There is a field. 1 by low charge which Force experience is done the same It is called electric field. Baby Clear electric field sorry electric force Experienced Electric Force Experienced by one less test charge is Cold electric field. cleared Child?

[00:14:40]Now pay attention further.

[00:14:44]it is it is denoted by it is denoted It is denoted by capital letter E. Brother Pay attention. We capitalize on the electric field.

[00:14:57]Represented by E. Electric We represent field with a capital E.

[00:15:01]Are. Child, pay attention. Now pay attention brother Write points and important things Remark, he is a child, brother, you write the remark Remark means child is important Point Remark Meaning Important Point What is the first point of attention of the child What is baby formula?

[00:15:26]The Formula of Electric Field That is force up charge that is force / Charge. Ok? And what can you say from here?

[00:15:35]Are? Force Equate What? q0 * e cross Multiply. Any doubt? This is the formula of electric field. This is the basic Formula of electric field. keep in Mind. Ok? And you simply SimplifyIt. f = q0 * e end second point Child, you remember. Isn't it? what is the unit? What is the unit? tell me the unit What will happen? [sound of clearing throat] ok baby Hello unit child, so tell me electric The formula for the field is force up charge There is no doubt whether you write q0 here or not.

[00:16:15]Write it in the formula somewhere in the definition Elsewhere, the electric field formula If you are writing then you need to write q0 there.

[00:16:22]There is no need. No such hard and fast There is no rule. So tell me this formula, this is The Formula of Electric Field. We Find out the unit using the formula We do. Brother, with the help of formula Let's find out the unit. Isn't it? Yes, tell me Any problem?

[00:16:42]Tell me quickly brother. Formula K Hum Help Let's find out the unit from. Why sir?

[00:16:47]Tell me quickly.

[00:16:51]Clear child?

[00:16:53]So tell me. This formula of electric field Force up charge. Force up charge. So the force Son, the unit is Newton. of the force What is a unit? Newton. and unit of charge What is it, child? Kalam. So Kalam on Newton.

[00:17:08]What is an electric field? Force Up Charge. So the force is Newton and the charge is Coolum. And you can see the chapter number in seconds.

[00:17:15]Will read. You are a measure of the electric field Read the formula. Isn't it? - DeltaV/ Delta R baby pay attention. V is the potential difference.

[00:17:25]V is the potential difference. What's R, baby? There is distance.

[00:17:28]change in potential difference divided by distance Change. Change in Potential Difference Divide by Change in Distance. Right? So Derivatives of Potential with Respect to There is distance, isn't there? So, we won't go into that right now.

[00:17:42]Have been. You just focus on what I I am speaking. of the electric field This formula is given in chapter number two.

[00:17:48]Will teach. What is the electric field equal to?

[00:17:51]Brother? The potential difference is above and this distance There is a difference, child. in the distance There is a difference. So tell me quickly. what up Happened? What is the unit of potential?

[00:18:00]Voltage. Volt. what is the unit of potential Is there a child? Volt. and distance What is a unit? meter. of distance What is a unit? meter. So keep in Mind child. Volt per meter and Newton per meter Coolum. both are the unit of electric Field. This is variant. Low End on the Newton Watt per meter both are the unit of electric Field. Okay, remember baby. this is Variant What will you say brother? It is an important matter, isn't it?

[00:18:34]Low on Newton. What child? Low on Newton R WT per meter WT per meter both both R Dee unit both are the unit of electric field electric field child Clear whether both are the unit of Electric Field This is what I am writing about: electric field Is the electric field clear, child?

[00:19:13]So much is clear, now let's focus on the third point third point that is dimensional Formula Dimensional Formula Dimensional Formula Off Electric field of electric field Brother, tell me quickly about the electric field.

[00:19:40]What will be the dimensional formula? still just I said the formula for the electric field.

[00:19:44]What happens? Force up charge. brother you q0 There is no doubt whether you write or not.

[00:19:50]Write the definition and then write the formula or Give it. Otherwise, the second place is not necessary.

[00:19:54]something like that. Now it is simple, look here.

[00:19:56]Force up charge. What is Force Up Charge?

[00:19:59]Do you speak? They speak of electric fields.

[00:20:00]Force up charge equi electric field.

[00:20:03]Right? So tell us E that is electric field here right us its dimensional I have to find out the formula. Dimensional Formula Have to find out. So it's a simple thing, baby The value of the electric field is It depends on the top. So the dimensional of the force Write the formula above for end charge Dimensional formula below. We have a capital E Dimensional formula of electric field Needed So we need to know the dimensional force.

[00:20:29]Formula and charge should be known. And You can learn dimensional formula in class 11th.

[00:20:34]I have learnt a lot of concepts. Speak up brother quickly. Is it clear till here, child?

[00:20:40]Ok son Prachi welcome welcome child. Ok Tender. ok baby i got it till here What?

[00:20:48]Now tell me brother the dimensional formula of force.

[00:20:51]What happens? mlt at -2 this would have been of the force And the child is at the charge. charge 80 of you will get at least five to six i.e. Five, six, seven, which is the main physical quantity.

[00:21:06]You must remember their dimensional formula Needed It is about velocity, isn't it velocity, speed?

[00:21:12]acceleration force work right When the dimensional formula of all these charges If you know about anyone with their help then Will be able to take it out. Right?

[00:21:25]So baby this is the electric field Formula. Baby, this is the formula. Now the force This is done and charging is simplified.

[00:21:31]Do it, solve it. m is brother watching m and brother l am watching l kids t power is 1 If it goes up it will become -3. Power on t It will become -3. And a is power 1. will go up So it will become -1. Yes. Clear child? this is The Dimensional Formula of Electric Field. So remember the formula and unit Remember. This too is very Brother Newton Per coulomb and volt per meter both are the units of electric field keep in mind child Well, their value is also equal.

[00:22:05]Direct in place of Newton on Coolum U Can use volt meter and in place of volt per meter you can direct use newton But Coolum both are equal in magnitude right End Dimensional Formula Clear Now son fourth point fourth point child The fourth point is to pay attention to that Variant Electric Field Electric field Electric field is a vector quantity Electric field is a vector quantity Keep in mind children's electric fields What is a child vector quantity vector what is the quantity Electric field is a vector quantity It's clear, child, and you know what it is.

[00:22:52]Vector Quantity What is Vector Quantity brother in vector quantity There is direction. Both magnitudes It happens. physical quantities that have Magnitude as well as direction It happens. Right? Baby, you here, give us this Tell me, are you talking about the electric field?

[00:23:09]Electric field is a vector quantity Then what will be the direction of Electric field? Right? You Know Electric Field is a vector quantity? That's right.

[00:23:19]But what will be the direction of Electric field? This is the question.

[00:23:23]Listen baby, you know that electric Who produces the field? Electric Who produces field produce? charge Produced by Bhai Charge. If any Charged whether in moving condition or not Be in static condition. Brother Charge Rest even when in position and charging when in motion Even then the charge remains on your Produces an electric field around Is. electric field around the charge Produces it. suppose there is a Positive charge here. right there is a positive charge here okay and this create This Produce Electric Field Around electric field around itself Isn't it baby, what is it all around you?

[00:24:06]will produce electric field okay this The thing is clear, any charge, be it positive Whether it is charged or negative charged, any Type of charge is any charged particle, right?

[00:24:18]Produce electric field around It's all right, this much is clear, now pay attention.

[00:24:23]Two types of charge If positive charge then there is more negative charge then now this Talking about direction, you are here, remember that what will you say Direction of electric field, what child Direction of this is variant point direction of Electric Field OK Direction of Electric Field Ok keep in mind Talking about the direction of electric field If we do it, we Please pay attention We are talking about For Positive charge for positive What does charge for positive charge mean?

[00:25:17]If it has a positive charge then its electric What will be the direction of the field? Meditation.

[00:25:21]Give positive charge away Away from the charge, simple thing you remember Keep away from the charge if positive What will be the electric field if there is a charge?

[00:25:35]Away from the charge that means son attention give there is a positive charge there is a positive charge then what is the direction of electric field of this charge that will Be away from this charge away from this Charge means stay away from this brother away. This is the direction of electric Field. This is the direction of electric Field. Any doubt?

[00:26:00]So what did you say brother? There is a positive charge. If There is a plus charge, there is a plus charge, so The electric field will run away from it.

[00:26:08]The electric field will be away from it. is it Okay son? Is it clear brother? Hi.

[00:26:17]Do you understand, child?

[00:26:19]What am I saying brother? If positive There is charge. If there is a positive charge. positive The electric field of the charge is away It happens from the charge. Brother away from charge It happens. Is it clear, child? Ok.

[00:26:33]And let's look at the direction of electric Talking about the field. This is positive It happened to the charge. direction of positive charge What happens? Say. of the electric field Away from the charge. Away from the charge.

[00:26:45]Keep in mind. Now let's talk about number B.

[00:26:47]Do it. Negative charge B number negative Charge charge Ok R negative charge R negative charge Ok Towards the charge, what will you say brother, towards Gave charge Pay attention, there is a negative charge, brother.

[00:27:22]What will be the direction of the electric field?

[00:27:23]Brother? towards the charge If there is a negative charge here like Dec. Ok? Then what will be the direction of this negative charge. that is towards the Charge. Look at the direction, look at this Directionant. direction this is the Direction of electric field. any doubt Has the child become so clear?

[00:27:48]Hi Okay son, it's clear, so you remember if has a negative charge, then its electric The field comes towards him towards the is charged and has a positive charge So the child is away from the charge Is it clear? Yes, it is clear, let's proceed further.

[00:28:08]Now let us understand one important thing, one important thing that I explained the definition to you at the beginning.

[00:28:14]I explained it to you son, understand it once again.

[00:28:16]Concept which is called concept of physics They say. You read the formula and move ahead.

[00:28:21]Go. That's not better. Ok? concept of What is the meaning of physics? concept What is the meaning of Physics? You Understand. Ok? son suppose there is a Electric field. suppose there is a Electric field. Right? Ok? end in this Electric field and a charge Q is Entered. Okay son? Did I say it? Suppose There is an electric field E okay and There is a charge there is a charge which is enter which enter this electric field then Q to this electric field it Do I have a clear experience, child?

[00:28:58]What am I saying? I am saying a simple thing.

[00:28:59]Notice when this electric field I will enter any Q charge, see this External, this is already an electric field.

[00:29:08]This charge has no electric field There is a lot of confusion here.

[00:29:11]Brother, is there any charge for the children?

[00:29:15]Does it? produces an electric field It is around you. Okay, right? so that's why What is there here? Test charges are levied Is. Test Charge's Own Electric There is no field. Test charge itself There is no electric field. I I told you just now. So pay attention.

[00:29:30]There is already an external electric field Yes child. This external electric field When someone enters a q charge then due to this electric field due to this Electric Field It Experiences Force Due to this electric field it Experience Force What is the Value of Force what is the value of force that is that is Charge * Electric Field. This thing is clear What happened, child? From here the value of E Take it out. Force up charge comes.

[00:30:03]I just taught you this. so much talk clear. So let me tell you this idea here.

[00:30:07]I want. When there is a charge placed In an electric field. when there is a Charge placed in electric field then Due to that electric field charge Experience some amount of force. Right?

[00:30:23]If a charge is placed in an electric field When it enters, that electric field What will happen to him because of this? Force will be applied.

[00:30:31]What happens to it due to that electric field?

[00:30:33]Will it take? G force will be applied. What is clear? So Brother, in which direction will the force be deployed? Force Force is a vector quantity. You Know Already. Force is a vector quantity. So Brother, when someone is in an electric field charge is entering, then that electric Suppose force is being applied due to the field.

[00:30:50]This is the value of force. but in v Direction: In which direction is the force acting?

[00:30:56]There's a Force at work in Question right ok child so you remember Is the question clear brother?

[00:31:05]Is it clear when an electric field If any charge is placed in the electric If it experiences a force due to the field In which direction will the force be applied? This is Variant question ok so brother pay attention what son If positive charge, right? If positive charge isn't it if positive charge is placed If positive charge is placed in electric field in electric field OK in electric field then Direction of Force Direction of Force Direction of Force Experience Experience Bye The Charge by the Charge Charge charge then direction of force Express by the Charge will be will be in the direction of electric field in the Direction of electric field so large from English Don't get confused by doing this brother, this is very It is a normal thing written brother and it is easy You can understand it yourself and write it down.

[00:32:49]Don't be confused with electric field First you understand this is such a big English Don't panic after seeing this, you should understand this sentence.

[00:32:58]electric field hai bachcha this is the Direction of electric field child this is the direction of electric field is it OK, this is the direction of electric.

[00:33:08]Field OK from left to right Left to right clear child, understand I am coming, baby, this is for you guys.

[00:33:18]The Direction of Electric Field. Ok.

[00:33:21]Ok. Now in this electric field, if any Keep a positive charge. What is written?

[00:33:26]If positive charge is placed in Electric field. If the electric field A positive charge is placed in it.

[00:33:34]Any positive charge in an electric field Is kept. then direction of force then Direction of Force Experience by the Charge. I mentioned an electric field.

[00:33:46]When a charge q is placed on it Tell me how much force is required? Charge* Electric field. Charge * Electric Field. clear? This is the formula of force Is. Now what should I do to direct the force?

[00:33:59]Did you write it brother? Which is the direction of the force.

[00:34:02]What happens? Say. in the direction of Electric field. That is, remember the force Hey son, this force is also here Will Work. Where the electric field is Only force will work. Is it clear, child?

[00:34:15]Please tell me any doubt. The direction of the force The direction of the force, child Ok?

[00:34:25]Well, you can write down the value of the force.

[00:34:27]No doubt. There is no problem in that. But Please show the direction here. of the Force There will be direction, the direction of the force Hoga Bachcha in the direction of Electric Field. clear? It is clear that brother You should remember this. Reply quickly son Do. This cleared the matter up.

[00:34:47]You remember son, we love you the most Discuss important topics. Isn't it Brother? You are preparing for board exams.

[00:34:54]If yes then we will discuss the same topic. So It will be very important for you and each one Will clear the concept. Brother, anyone Extras or anything unnecessary Things will not be told. as many things as I am telling him the concept of physics.

[00:35:08]They say. Learn each and every thing, brother.

[00:35:12]So let's go quickly son, what have I done?

[00:35:14]What if in an electric field A positive charge is placed on a Any positive charge in an electric field If it is kept then brother on positive charge What will be the direction of the force?

[00:35:26]speak in the direction of electric field Wherever there is electric field, there is force.

[00:35:32]Electric field there force will work and What is the value of force that is F = QE is it Come on son, now pay attention, this is positive There is charge. Now what is the negative charge baby?

[00:35:43]Brother? Negative Charge Isn't it brother?

[00:35:48]Let's go if negative charge if negative charge is placed If negative charge is placed in electric field In electric field child ok if negative Charge is placed in electric field Field OK Then direction of direction of Force Direction of Force Experience by The Charge Experience Buy the Charge Explained by the charge Okay child, if negative charge is placed in electric field then direction of force Express by the charge is not in the opposite in the opposite direction in the opposite Direction In the opposite direction of electric field In the Obscurity Direction off electric field child electric Field ok now see what I said so much What if you are not scared after seeing big English?

[00:37:24]Meaning, understand that there is an electric field.

[00:37:26]right there is an electric field in this Direction ok this is an electric field whose direction is from left to right From left to right is the child. any doubt Is it even here? Now pay attention. This Any negative charge in an electric field You will keep it. In this electric field, there is no If you keep a negative charge, I will already give you I told you just now. any electric field If I keep any charge then force it Seems like in an electric field If you keep the charge then that force is applied. Brother So what is the direction of the force? If Remember, in an electric field If we keep a negative charge then the force that will Direction will be opposite to The Electric The electric field is acting here So what will be the force, it will work in opposite direction what will be the force opposite and what is the The value of force that is f = q * e gives you You don't have to write the symbol here.

[00:38:19]If it is not -q then do not write minus Hey kid, okay, did you understand your statement?

[00:38:26]Remember immediately, it is a very simple thing.

[00:38:28]It's a simple thing. any electric field When positive charge is placed in Any When a positive charge is placed in an electric field If it is kept then where will the force work? in The Direction of Electric Field.

[00:38:38]Wherever there is an electric field, there will be force.

[00:38:41]Works on positive charge. This Negative charge in an electric field If we keep it opposite to the electric field The force will work. will hold a negative charge In the electric field, brother, electric The force opposite to the field will work. And If we keep it positive then the electric field Let's be clear on the direction and we will discuss it together.

[00:39:00]I ask you a question, child, tell me if you understand.

[00:39:04]what is the child Ok Let's talk about one question, okay son, if Give Region There is a region where Electric Field Electric field If there is a free space, you can write anything Isn't it place, region, I mean area, place brother?

[00:39:42]be confused if there is a reason there is [sound of clearing throat] Reese Where Electric Field in the Direction of war electric field in the direction of Direction of East Ok donation Neither give nor find poor find the Direction of force then find the direction of Force when what child Force when case first when case first Remember what when electron when electron Enters Electron Enters Electric field Electric Field Force ok son then find direction of Force of Force direction of Force Experience Experience Bye charge particle Charged particles are understanding what you should give find the direction of direction of one charge sorry then find the direction of force Isn't it a force?

[00:41:44]Experience By P Write down what you write down R 8 ok clear baby look So case number one, baby electron Enters in the Electric Field and Second Bolo Proton Proton Enters in electric field It's clear, child, you understand the question.

[00:42:20]What question did you have? Tell me quickly.

[00:42:22]The question is, son, if there is a reason Where electric field is in the direction of East. Where is the electric field? East It is in the direction. what do you have there now The direction of the force has to be stated which is Experience what particles are Have been. Pay attention to what it means? Look at this is the direction of the electric field. This is the direction of the electric field. East [sound of clearing throat] Direction you You understand, it's East and West, right brother?

[00:42:57]You know South North this much, okay?

[00:43:03]The East will be here only and this electric It is a field brother, it is not written East.

[00:43:07]What is the electric field in the east direction?

[00:43:10]Hai bolo electric field hai east The electric field is now in the direction In this, when any electron electron entry will any electron When it enters, the force that will be applied on it Tell me its direction brother. which direction Will it be told in? Tell me quickly.

[00:43:27]Tell me the question brother. These are watching The direction of the electric field is here.

[00:43:32]East direction. What is this? East There is direction. Ok? And when someone in electron entered, when the electron entered, then on this electron which Force will be applied, watch is the direction of that Force? Tell me quickly brother.

[00:43:48]Please reply. did you understand the question Child? Did you understand the question?

[00:43:53]What is the direction of the electric field?

[00:43:54]Say. East Side. of the electric field What is the direction brother? East Side.

[00:43:58]It is in the east direction. and it has an electron What brother? an electron entering Is. What is an electron doing, brother?

[00:44:07]Making an entry.

[00:44:10]So what will be the force applied on it?

[00:44:12]Will there be direction? Tell me quickly brother. Tale Me someone.

[00:44:16]Hi.

[00:44:19]Tell me brother, pay attention. I am telling you.

[00:44:22]You people probably don't understand. I I just told you, child, if an electric If in an electric field If negative charge enters. Any Negative charge in an electric field If it enters, the direction of the force What happens? Opposite to the Electric Field. negative in an electric field When the charge enters the charge that Force seems that is opposite direction of Electric field. electric field here If yes, the force is here. Is it clear, child?

[00:44:57]Did you understand? So let me tell you this So that's it. Here the electric field is directed eastwards is in the direction. electric field east direction is in. It is in the east direction. So The force exerted on the electron But where will it be installed? Opposite to the East What is the opposite? West. of the East What will be the opposite? West. So this will be y Direction of force. And the value is yours If you know the value of q * e, then you know the force.

[00:45:23]What will be the value of? q * e and here q Meaning the charge of the electron.

[00:45:29]The charge of an electron is written as e.

[00:45:31]The charge of an electron is 1.6 * 10 Power -19 is low, right? It is written with e liter goes. Ok? Remember this. So this is clear What brother? It was such an easy question. Now come Let's talk about the second question. What was it?

[00:45:47]The electric field you are looking at is east.

[00:45:49]In the direction. Where is the electric field?

[00:45:51]It is in the east direction. When protons in this Proton means positive charge. electron But there is a minus charge. Proton Plus It gets charged. So when the proton is in will make entry i.e. plus charge entry The child will do it. When the proton enters Where is the plus charge levied? in the Direction of electric field. So the force What will be the direction? It will be here only.

[00:46:13]That means the force will be applied in the east direction. East Force will be applied only in this. Clear child? Us Tell me, is this clear? This talk Is it clear? West. ok son future Tech, right? India. Yes you are right. Isn't it?

[00:46:27]For whom are you telling this? West. electron Where was the force deployed in the case? In the West. And Where did it fit in the case of proton? in the East only Put. Ok son. So electric field baby This is yours. Now it's clear baby, come on now Isn't it next?

[00:46:44]Look at the numerical, you look at the numerical like Isn't it numerical like brother attention give ok Let's go if Alpha particle if alpha particle enter enters hai na if alpha particle enters in Electric Field in electric field This electric field is 20 Newtons.

[00:47:18]lower right note if alpha particle enters an electric field of 20 Newtons Come Right Then donation Find then find is not brother then find the Value of then find the value of force Value of Force Then find the value of force Experience by Experience by Alpha particle Alpha Particle Tell Me the Answer Someone Right Reply to this brother, reply to the answer tell me how many students you know alpha Particle about alpha particle. Alpha How many people know what about particles?

[00:48:14]Do you know? Tell me someone. you know what is Alpha particle? What is alpha particle?

[00:48:20]Tell me someone.

[00:48:23]Child, what is alpha particle?

[00:48:27]Tell me brother. Something about alpha particles Do you know what?

[00:48:33]Speak up child.

[00:48:35]What is alpha particle? In question What is? Alpha particle child What is an alpha particle? tell me Someone.

[00:48:48]Speak up, Mr. What is an alpha particle, child? Let go I tell you. You remember about it Keep it. It is a very useful thing. of great use It's a thing. Isn't it brother? of alpha particles It's about, isn't it, you remember what, baby?

[00:49:08]Isn't this the nucleus of the nucleus?

[00:49:24]Nucleus The nucleus in this Nucleus of helium. Ok? nucleus of Helium. Do you know about helium?

[00:49:37]Child. Let's know about helium. This Is the helium atom. This is the helium atom.

[00:49:43]There is two protons. There is two protons.

[00:49:47]And there is two electrons and there is two Neutron in alpha part. Helium. Brother Notice the helium atom. This Is The Helium Atom. You understand helium atom. yes this is The Nucleus. This is the nucleus. End You know protons and neutrons. Proton End Neutrons are in the nucleus. Right? So two proton and two neutrons. two protons and Where are the two neutrons in the nucleus? And Where are the two electrons that are left? These Keeps circling. This is the first Orbit. This is the first sale. clear?

[00:50:21]What do you know about the nucleus?

[00:50:23]To the people. About helium. clear? So Is that written? what is alpha particle It happens? C nucleus of helium nucleus of helium atom nucleus of Helium atom, tell me the nucleus of helium What is an atom? Say this quickly Nucleus of so it is just called nucleus of Talk. So if you talk about the nucleus What is in the nucleus? two protons and two is a neutron. nucleus of helium There are two protons in the nucleus. Two There is a neutron. And you know neutrons Is a neutral. Neutron has no charge but Protons have a positive charge.

[00:50:58]positive charge then [sound of clearing throat] Brother Two Protons There are two protons, what is the charge of one proton?

[00:51:03]is 1.6 * 10 to the power -19 less than two If this is the meaning of proton then you should remember it today.

[00:51:10]If there is any discussion about alpha particles after Whenever there is a discussion about alpha particles, you Remember how much a child is, pay attention.

[00:51:18]How much is the equivalent of a nucleus of helium?

[00:51:21]quickly Bi 2 * charge of proton 2 * charge of Proton, you don't have to write all this here.

[00:51:32]I will tell you these things separately in this question.

[00:51:34]I am telling you that it is important to charge off Proton Proton ka kya bhaiya two times What happened 2 * good proton means Positively charged protons mean positive What is the positive charge on an alpha particle?

[00:51:48]Alpha particles have a positive charge This is D, son, pay attention.

[00:51:55]So you remember how much on the alpha particle Does it charge? And it is always positively charged.

[00:52:01]It happens. What always happens brother? positive It has a charge equal to that of a proton.

[00:52:06]Any doubt, child? Ok. And son, one more Remember this. Pay attention to the important thing. What I am calling? Say. what is this charge Happened? Speak quickly. Charge of Alpha particle particle equal to two times of Charge of proton. That's what it means brother. These Brother, all these things are very useful. all this There is a great use of words. So I do that I will write it down. Isn't it? So charge of alpha particle equal to two times the charge of Proton. QP means charge of proton Q Alpha means charge of alpha particle. So This is what value is. You remember this. End Next means mass of alpha particle. Mass of alpha particle equals you remember 4 times the mass of the proton. This is variant Point. This will be useful to you in future. Joe Alpha The particle has a mass, the mass of a proton What happens to it? It is four times. Alpha The mass of the particle is four times the is the mass of a proton. and Joe Charge It has double the charge of the proton.

[00:53:07]The charge is double but what is the mass?

[00:53:10]Is? It happens four times. These are variants Point related to alpha particle. So you Remember these forever. Ok Child, now let's come to the question. Isn't it brother?

[00:53:24]Sir you are doing your test. Thank you. Thank you You mister. Thank you. Ok child.

[00:53:32]That's good, son. Thank you.

[00:53:36]So son, pay attention to this. this alpha You should remember this much about particles.

[00:53:40]clear? Now let's come to the question.

[00:53:44]Let's talk about the question, child.

[00:53:48]So pay attention to any physics Have to solve numerically. in Physics Your 95% 95% of the problems are numerical.

[00:53:57]That child is formula based.

[00:54:00]Ok? The problems in physics There is a numerical problem, you understand So what is 95%? Formula Base It is a child. clear? So formula based Very easy to solve the question There is a trick. You read the question carefully.

[00:54:16]What physical quantity is given in it?

[00:54:18]How to recognize? Will recognize by unit. Who C is a physical quantity given? We unit You will recognize it from. Who will you recognize? from the unit Will recognize. Ok? ok next time ever Let's talk about electrons. anytime Talk about electrons, sometimes protons talk, sometimes alpha particles, sometimes neutrons, Sometimes neutrons. Teuton means this child isotopes of titanium hydrogen you know What are the isotopes of hydrogen?

[00:54:45]1H1 Son, tell me quickly 1H1 1H2 and 1H3 what do you say child this is called protium this is called protium okay And this is deuteron deuterium say deuterium deuteron and this is Tritium these are the isotopes of Hydrogen. These are the isotopes of Hydrogen. then you will get the deuteron Deuteron Word. So what does deuteron mean?

[00:55:15]Will be done? It is also written as 1s2 that is D Yes child. Clear son? One Proton One Electron. One proton one electron.

[00:55:25]How much charge does a neutron have? Forest Equivalent to proton. how much on neutrons Does it charge? Equal to one proton. Ok?

[00:55:32]So what do I want to tell you? anytime in any physics numerical at any time In any physics numerical electron proton alpha particle If you say discussion about neutron then you remember Keep their mass and their charge immediately.

[00:55:51]It should come to mind if you are in question You may be given the value of the mass charged that's another thing right But please keep in mind what the mass is what is the charge of the particle right His name comes up in any question at any time.

[00:56:09]about his mass, about his charge It is your utmost duty to think about You should know this, so come clear.

[00:56:17]Let's start the baby, now the session begins.

[00:56:20]Look how easy the session is, you are a child now, aren't you?

[00:56:22]Alpha particle is saying brother alpha If he is saying particle then pay attention immediately brother So it is very easy.

[00:56:35]Ok? So brother, as soon as you say alpha particle The charge should come to mind immediately.

[00:56:41]charge of alpha particle charge of such I have written a symbol. charge off Alpha particle that is 3.2 * 10 power -19 Coolum. Just I told you. Ok? This son Remember the charge of alpha particle. End Son Newton at Coolum. What did I say?

[00:56:59]In numerical, remember to identify by unit Which physical quantity is given? and now Just I told you Joe Electric field which is an electric field Yes, it has two directions brother, oh sorry Electric field has two units Newton per Kalam and son volt per meter Keep in mind there are two unit okays of Electric Field First Is Newton But Less and second is what per meter and both are Equal in magnitude both are equal in Magnitude That Means 1 Newton per meter equals 1 Watt per meter. Any Doubt child? You should remember this. so how do you Will you recognize? Will recognize by unit. what given Is it brother? Look at Newton on Coolum that is Electric field. that is electric Field reduced to 20 Newtons. And baby, you What was asked? what is the value of Force? Find the value of force. Son Force has been asked of you. So you tell me if If you know the formula then these three Do you get this by looking at physical quantity?

[00:58:07]We won't know which formula we use.

[00:58:09]What to do? If you remember the formula f = qe f = qe either e = f / q why brother?

[00:58:21]= fq Brother Okay, either tell me quickly brother this e q = Say the value of q the value of q e f/ e brother What's the problem? You remember a formula.

[00:58:38]I know how to transfer the rest of the math. Lyrics Brother, you know the charge and electric I know the field. The charges are known and I know the electric field. Force asked Has gone. Isn't it so easy brother?

[00:58:54]Brother pay attention f = Then f = qe Brother, its by the use of this formula right So you understand what the value of f = q is.

[00:59:10]Is? 3.2 * 10 to the power -19 And E that is 20 that is 20 okay now attention So when we solve it, 32 * 2 = 64 32 * 2 is 64 and one zero is placed at the decimal point Went. What happened? 10 to the power -9 And what is the unit of force that is Newton. What is the unit of force? that Is Newton. Ok. So you remember that. Now look 640 means 64 only. Pay attention so much only occurs. So pay attention whenever you If calculations are done then scientific notation The answer will be written in. Scientific Notation What happens to the child? You should know this Needed Pay attention to what the decimal should be.

[00:59:59]Needed? One non-zero digit before the decimal point Should be. What do you mean? The answer is 6.4 That is, we will divide by 10 when it means 64 If it happens then if we divide it by 10 then we get a decimal.

[01:00:11]It will be applied here and when we multiply by 10, we get 10 Here the decimal is divided by then multiplied by 10 If you do it, then multiply it by 10, then tell me what It will be 18, what will happen brother -It will be 18, pay attention OK 6.4 * 10 to the power of -18 Newtons, you can remember this also.

[01:00:33]Keep the trick as much as you step to the left Let's move to the left side and do the same on this Hey brother, tell me quickly, I want to add one.

[01:00:41]What should I do with the ad, then add one ad in -19 what will you do, you will get minus, tell me quickly Isn't it 18, it will be clear baby, so this is yours The answer to the question is okay brother, well problem Tell me son, what are you saying brother, relation Tell me, tell me, what is the relationship between whom, child?

[01:01:05]One last question, child, one last question I am telling you the question. Then the next topic is Are going to get it done. There is a last Question. Ok?

[01:01:13]Next question, child, pay attention.

[01:01:20]If Isn't it 20 micros less charge, isn't it?

[01:01:33]Isn't it brother Experience Isn't it an experience?

[01:01:42]Experience Gave Force that is 5 * 10 to the power 2 newtons right It is written if 20 micro less charge Experience Force 5 * 10 to the power 2 Newtons Isn't it in in electric field in electric field In Electric field ok then find the value of Value of electric field Tell me quickly about the electric field.

[01:02:34]Solve the question, look at the language Language doesn't matter much How many times have I told you in Physics?

[01:02:42]Language doesn't matter, you are important Remember who gave the physical quantity Identify the physical quantity units.

[01:02:49]Identify from the unit what is given ok quickly Please answer this brother Mr. Reply Do Hello Mr. Hello I am in class ok ok welcome to all welcome to all child Mr What are you saying Upalaksh Sharma Mr. Upalaksh Sharma, please tell me what is your relation?

[01:03:21]I am asking about the relationship, brother, which one is it?

[01:03:24]You people are asking about the relationship, say it is complete.

[01:03:27]Please write the question Mr. Sharma Write a complete question Okay, solve the question quickly son.

[01:03:37]This one has it, right?

[01:03:40]Let's pay attention suction What I said, you never know the language You will be confused how to read the question Identify the unit, identify what is given brother Pay attention, what is this, 20 microns less?

[01:03:56]What is coulomb, it is the SI unit of Charge. You know come is the unit SI unit of Charge. Right?

[01:04:03]Ok. Given child what child? given that is Q = 20 microns less.

[01:04:11]Ok? And when you remove the micro If yes, then how much is the multiplication? 10 Power of 6. When you remove the micro So 10 to the power of -6. So Coolum. Why do we do this Do you child? Because we have to calculate This has to be done in SI. Calculation SI At Value, we do. So the micro Multiply 10 power -6 to remove.

[01:04:32]Okay kid, now let's simplify this too.

[01:04:34]Can. But let it be just that. this is The charge given charge and Newton that is Newton. Ok? What did I say? Language It's not important, child. It is important unit. It is a physical quantity. unit Look child. Newton means force. Newton Minans Force. SI unit of force What is? Say. Newton. Newton is the SI Unit of Force. So how much force equals Have you kept it brother? 5 * 10 to the power 2 newtons. Any Do you have any doubt? then find the value of Electric field. then find the value of Electric field. Ok? So simple thing Is. If you know the formula in your mind Is. If you remember the formula then these three Your mind will start working immediately after seeing this. These Which formula should we use brother? So Remember the child. So E = What? Force up charge. Brother Electric Specify the value of the field. So force up It is charging brother. What is the value of force?

[01:05:37]Is it a child? 20 * 10 to the power of 6 OK electric field value force up Charge and force is 5*10 power sorry baby one minute Okay, is this clear to you guys?

[01:05:58]You are given the value of the charge, the value of the force The value of the electric field is given by It has been asked to tell the electric field quickly.

[01:06:05]From Did I just tell you?

[01:06:09]What is electric field equation?

[01:06:11]Force up charge. So what is the value of force?

[01:06:14]Is it brother? Force value 5 * 10 to the power 2 Force value 5 * 10 Power 2 and Charge.

[01:06:23]What is the value of charge? That is 20 * 10 power -6 brother solve it. so easy It is a calculation. It is an easy calculation.

[01:06:35]So what will happen? Say p = 5 * 1 = 5 5 * 4 = 5 * 4 = 20 so what do you say above and If this -6 goes up and becomes plus, what is 10 raised to the power?

[01:06:46]Done eight see this is two and -6 will go up So what will happen, it will become eight divided by The child is four, what is four, if there is any doubt Pay attention, what can you write about this, 100 * 10 What power can you write, ch and brother it would be 6 2 8 Is it 6 2 8 or not, is the child clear or let it be like this No matter how you do it, there is no doubt about it. See You have to do the calculation. The calculation is you have to have. every way to calculate Every person has different ways, son.

[01:07:14]Okay, right? So don't panic. So this is your What happened in the manner? What's in the Divide?

[01:07:18]Four to 25 25 * 4 is 100 thus Notice the value of e which came out to be 25 * 10 Kalam on power 6 Newton. What is i unit?

[01:07:30]Kalam on Newton. Well what is its value?

[01:07:32]Will be done? We will do this in scientific notation.

[01:07:34]So what we're going to do is divide 10 by 2.5 and Then we divide it by 10 and the result is 10.

[01:07:40]If you multiply by 10, what will it become?

[01:07:42]Low on Newton It's clear, baby, let me tell you sometime Day Basic Calculations in Physics I will teach you in calculation, ok basic class.

[01:07:52]If I teach you, then there is no doubt, calculation is inside.

[01:07:55]Things you are forced to do and charged with doing I have to simplify it and find the answer.

[01:08:01]Has the child become clear till here brother?

[01:08:04]Let go What did you read brother? class 12th physics class Teaching 12th Physics First. Chapter The child who is in class 12th is number one, isn't he?

[01:08:14]It's Physics, child, read chapter number first.

[01:08:16]You are here, Mr. Ok So the next topic is child, you pay attention Two. Next Topic That Is Electric Field. that is electric field Due to Due to electric field due to point Charge Due to Point Charge This is the next topic of this chapter.

[01:08:45]This is the next topic. Right?

[01:08:50]It's done baby.

[01:08:58]Ok. Electric field due to a point Charge. Point charge means son Electron, proton, alpha particle. Deez Are very small particles. These are very Small charged particle. Points mean a lot Small Ok? Now son, pay attention. into what Do you want to do it? Isn't it? There is no derivation in this Not there. There is no derivation. suppose What does it mean? There is a Q charge Here. There is a Q charge.

[01:09:24]This is Q charge son. Q charge to R At a distance. A charge at a distance R from charge Q The point is P. There is a point P. You here The value of the electric field has to be given. Ok Child? Please pay attention. You already know that there is any charge, any charge whether Whether it is plus charge or minus charge, your What does Brother Electric do all around?

[01:09:49]Field produces If There Is a charge then it produces electric field around itself you know already okay anyone Charge either there are in moving condition and Static condition: Whether a charge is at rest or in motion If he is charging then surround him Electric field will be produced. is it Ok? Ok child. So as you wish Isn't it brother? What is your wish, child?

[01:10:18]Pay attention. This is q charge. all around it There is an electric field. So you find out this want what is the value of Electric field q to this charge from r Distance. Ok baby, any problem? bro this q There is charge. It surrounds itself with electric current The field will produce. Brother, this is all around you.

[01:10:38]It will produce an electric field. But You want to find out the value of Electric field. You Want to Find Out Value of electric field due to this Charge. Ok? Ok. So son, distance from this But how much electric current is there at a distance r from it?

[01:10:55]Will there be a field? So you remember it this way.

[01:10:58]What will happen to you, child?

[01:11:00]The value of the electric field will be at Point P, well it is not necessary to write P here.

[01:11:06]Child, it is not necessary to write P, do not get confused You might have understood some other meaning instead of P.

[01:11:11]Just understand its meaning son, this is what it means child Q charge at a distance R from the charge Q Value of the electric field at a distance What will happen? value of the electric field What will happen? Brother, I am speaking here.

[01:11:24]Isn't that the point? So what is clear on P point?

[01:11:28]Don't write P, otherwise you will get confused.

[01:11:30]Brother. What will become E equal to? Yes here Write down the equation KQ/R² Ok and wear Where K = 1/40 When solved for 9 * 10 9 Newtons Square Meter Per Square [ __ ] Beta Clear So you can find the electric field equal to 1/40 What would you write for q up r² or something like that? e = 9 * 10 to the power 9 is its value q / r2 so baby in front of you electric field Three formulas were written. Electric Three formulas of the field were written. Any Doubt? Understand its meaning, ask someone from Q Charge Electric potential at a distance r from charge q What is the value of the field? So you remember Put kq/ r² brother what is k? Constant Where is its value if this charge? Say Very important question. If this charge is Is? is in vacuum. It is in the air. If this This is the condition when the charge is in the air. If this This is the condition when the charge is in the air. Child Pay attention to this formula. in some medium If it happens, it will be different. So brother q charge to r It is at a distance. Is the value of K cleared? q There is charge. What is r? Distance. Any Difficulty? Is it clear till here, child? Done. When?

[01:13:07]Will you educate your child till then? Just half an hour, son.

[01:13:10]And I will just teach. Isn't it? half an hour more Will teach. Isn't it? So you understand, 1 minute. Now There is a doubt here. These are three formulas. This Where will you use the formula brother? then you The value of the electric field in numbers I want it, I want it in numbers, I want it in numbers Then use it. of the electric field We need the value in numbers, in digits.

[01:13:33]We will use it if needed. other than that We will use it anywhere. Isn't it? Brother Whichever one you use in the end, we will use this only.

[01:13:40]do. But I want it directly in numbers.

[01:13:42]Value. So use it directly. And What does "in another place" mean? Picture After making it, asked about electric field etc. If it goes then we will use it directly. Little It will be easy to calculate. The value of k Otherwise there is some problem in keeping it.

[01:13:55]clear? Ok. So let's ask the question.

[01:13:58]Brother, let me ask a question on this. Son Will ask questions.

[01:14:05]Find find the value of Electric field. Find the Value of Electric field Find the value of electric field ok Child From Ok From Find the value of electric field Ok at 10 centimeters away at 10 centimeters away from the From the Alpha, isn't it brother?

[01:15:04]particle from the alpha particle early Tell me the question in very simple language I found the value of Electric field at 10 cm away It is from the alpha particle, isn't it brother?

[01:15:19]10 cm away from the alpha particle. To you The value of the electric field has to be given. Brother I just wrote the formula. E = What?

[01:15:28]KQ/ R² OK? And E Equ did I write?

[01:15:34]Force up charge. Tell us when it will be Will you use it? When will you use it? Any Are you confused brother? Brother, when charging Discussion of Distance and Electric Field Brother, this is also about the electric field.

[01:15:46]The formula for end electric field is This is also a formula but when do we use which Formula right is a simple thing, child.

[01:15:54]Brother, there should be a discussion about the charge.

[01:15:57]This distance charge is discussed in this There is also this, understand the main thing if you pay attention Let us discuss the distance, then we will discuss it.

[01:16:05]If this discussion of distance is to be used will use it And if there is a discussion about force then its use do. There is charge in both. Distance We will use this for. of distance If there is a discussion and there is a discussion about force then Will use this. There is no doubt. So Read the question.

[01:16:26]Brother, what is given? Find the value of Electric field at 10 cm. Away. To you Brother, what have you given me?

[01:16:36]10 centimes away from the alpha particle Baby pay attention here is the alpha particle.

[01:16:43]What is it, baby? Alpha particle is a charge.

[01:16:46]is a charge okay child particle like q There is charge, isn't there alpha charge, how much is 10 centimeter away means far alpha 10 centimeters away from the particle here You need to find the value of the electric field.

[01:17:02]Getting out is a simple question. Alpha 10 cm away from the particle The value of the electric field has to be given. So Is there any discussion about distance or not? So We will use the distance formula. Say quickly. Brother, I just told you What is the value of the charge? charge off Alpha particle. I just told you.

[01:17:22]Charge of Alpha Particle. What happens brother? Two Times of Proton. Two times the proton. that is 3.2 * 10 Power - 19 Come This is the charge OK Charge q this is the charge q isn't it brother this is the charge q = 3.2 * 10 to the power -19 less brother here alpha If you are not able to write then don't worry brother why Given value and r = 10 cm and y Do you know that coulomb is the SI unit?

[01:17:56]SI unit of charge to the distance w will also in SI value ok beta hoga The distance should also be the SI value.

[01:18:05]Remember to convert centimeters to meters.

[01:18:07]Keep it, multiply it by 10 power -2 Yes brother, how to convert centimeters to meters For this we multiply by 10 power -2 That will be 10 power -1 meter no doubt no Problem child what would you call this 0.1 meter If you have any doubts, child, then you will say What is equal to brother? 9 * 10 Power 9 q / r² This is the formula. this is The Formula. What did I say? If you Data is given in numbers, digit by digit is given, then we use this formula do. Brother e = 9 * 10 to the power 9 * here inu Brother, what is the value of the charge, child? These 3.2 * 10 to the power -19 / r2 is the square of the distance, that is 0.1 Brother, write 0.1 or 10 to the power of -1 brother, whether it is 10 Write -1 to the power whether it's 0.1 butt square what is the child it is square no doubt child Tell me even Clear even Okay, okay, tell me brother, is it clear till here?

[01:19:21]Do you know the value of the charge?

[01:19:24]The end distance is known. centimeter meter Converted into. So brother Electric This will use the field formula. These is the value given and q means charge r means Distance that is 10 to the power -1 and 10 Square. ok kid now when you solve this Will you pay attention? ok baby What will you do when it happens? If you solve it then What will be your answer? Speak quickly brother.

[01:19:53]Tell me quickly. what will become an equ Brother? Look, multiply this by nine. 9 * 2 = 18 9 * 3 27 1 28. decimal digit on digit one on this into look it's nine and It is -19. 10 to the power 9 is 10 to the power -19, so what is it?

[01:20:16]Is the child gone? What will 10 to the power minus become?

[01:20:19]It will become 10. What is it, isn't it? 10 Power What is minus 10 and the child divided by?

[01:20:24]Power has a power multiplied by power.

[01:20:27]Multiply power to power 2 * 1 = 2 That means 10 power -2 no doubt child of nine Multiplied it. solve it in Did. This much came and 2 1 2 - 2 any doubt? Brother When you solve this, your answer will be clear.

[01:20:42]It is visible. What happened baby?

[01:20:46]Say.

[01:20:47]28.8 Isn't it? What will happen if -2 goes up to +2?

[01:20:53]10 to the power of -8 will become -10 and go up.

[01:20:57]These +2 That Will Be -8 Right Okay now the important thing, okay unit what Is the unit that is Newton less. Ok? But This answer will not be given. always answer what gives? In scientific rotation. Standard In form. You have studied in class 11th This standard. So pay attention to the standard What does form mean? of basic Meaning there must be a digit before the decimal.

[01:21:21]Non-zero digit. So, here we are If we bring it, what will we do with 10? We If we divide it, it will become 2.88. When we are 10 If we divide by 10 then this will come here Will go. So multiply by 10 also.

[01:21:35]Will have to. So it becomes -7. Any doubt? 10 of If we divide, one decimal will come here.

[01:21:41]Multiply this by 10. 10 of What if you multiply it? Power-7 aa Went. Any doubt child? Thus your A question is asked. from the very basic There are questions, son. Isn't it? Ok.

[01:21:57]Now let's talk about the next question brother.

[01:22:00]Are. Ok.

[01:22:04]On the axial line are not.

[01:22:09]Okay, kid, pay attention. when the baby When will we discuss Dupola, child?

[01:22:14]When we discuss Dupole then there Will you understand the meaning of XL? Son, pay attention.

[01:22:20]like what happens there is a two charge no oh sorry Note that -q is the first charge and +q Is the first second charge son if both straight line joining the charges Joining the Charges Line Joining the Charges is called axis of the charges Axis of the dipole lining joining the Charges called axis of the dipole child is No, now they will learn further concepts.

[01:22:52]Let go Brother, pay attention to the second question brother, okay son at what distance at What Distance at what Distance ok baby At what distance electric field Electric Field Electric field Electric Field will be Will Be Brother You remember one minute baby Let's remember that's calculation okay?

[01:23:56]speaking at what distance electric The field will be at least 10 Newtons.

[01:24:02]Newton on Come From The 20 nano less ok Himalaya Capital C, tell me quickly brother Answer: Tell me the answer quickly Are you understanding the question or not?

[01:24:36]I will understand son, but you will not understand the question.

[01:24:39]what are people saying at what Distance Electric Field Will Be 10 Newton per come from the charge 20 this is Nano Low Nano come ok baby So tell us what I asked you in the question.

[01:24:57]Read any question as mentioned By doing what is given data, take that out unit what else is being asked of him?

[01:25:05]Relate it to the formula, then the child Pay attention to the solution Solution ok child at what distance You have been asked what distance But what will be the value of the electric field?

[01:25:20]Newton per coulomb that is electric field Newton per coulomb that is electric field Given No electric field that is 10 Newton per What's left of Coolum End? Nano less. You Know Coulomb is the SI unit of charge q equal to How much have you given? 20 nanos less.

[01:25:46]20 nanos less.

[01:25:49]So brother, we will remove 20 nanos to the power of 10 minus 9.

[01:25:54]Less. There is no doubt. ok baby pay attention You can write this further. Brother 2 * 10 power -8 The minimum is 10. 10 * 10 to the power -9 Clear Here 10 This son, data is given to you by electric The value of the field is given and the charge is given If there is a child then what has been asked about distance If asked what will be the distance r Brother, we are writing distance with the letter r.

[01:26:23]There can be an x ​​in place of this, there is no doubt about it.

[01:26:25]Hey brother, I asked about the distance.

[01:26:28]It's a simple matter, brother, please tell me.

[01:26:30]I understood this much, look at the electric thing.

[01:26:33]Field Field Distance and Charge Electric Clear field distance and charge What happened, child? Which formula should we use?

[01:26:42]Are you going to? E = 9 * 10 to the power 9 Q / R² child Q / R² So baby pay attention you will get from here r The value of is asked. What was asked? r So you can solve this by keeping the value also.

[01:26:58]Or you can first find the value of r.

[01:27:01]First find the value of r. what's good Will you go? r² = this will come here and divide into 9 * 10 to the power 9 q / e q / e ok baby q / e any doubt Okay kid, you remember this and r's If you value it, then pay attention when r comes next to it What if we open it under the root when y If the square goes there, what will become under?

[01:27:30]root 9 * 10 power power 9 q/e bhaiya koi doubt Please tell me any doubt brother, it is in this formula.

[01:27:42]No brother e = 9 * 10 to the power 9 q/ r² r what If asked for r, then first find the value of r.

[01:27:49]No brother r² here and e here now square when If you go here, an under route will be built on this What became under root clear child then This is yours, are you looking at what value do you have?

[01:28:01]It is clear that the value of charge is this much and e The value is this much. So what are you doing?

[01:28:06]Will you write?

[01:28:10]r = n² 9 * 10 to the power 9 that is q/e value Brother.

[01:28:21]What is the value of 9 * 10 to the power 9 * q? 2 * 10 power -8 The value of the charge is divided into brothers.

[01:28:31]This divide within the divide is the whole It is in the divide. What is the value of E brother?

[01:28:35]Coolum I think at 10 Newtons of E. Isn't it?

[01:28:38]Pay attention. The value of the charge is 10 newtons.

[01:28:41]The value of the charge is this much. End E value That's it. clear? So this much is correct. Now brother If you solve this, what will happen to you?

[01:28:50]Will you go? Speak quickly. 2 * 5 = 10 so r What will be the equivalent?

[01:28:56]Isn't it brother? What will 9/5 mean?

[01:28:59]5 * 2 = 9 * 2 = 18 18 * 5 = 90.

[01:29:02]18 * 5 = 90 Any problem come. 1/5 of What does it mean? 5 * 2 = 10 0 If you multiply 2 0.2 by 9, you get 9 * 2 = 18.

[01:29:14]One number is a dash. That is, what is left of 0 1.8?

[01:29:17]1.8 You will do the calculation yourself. 1.8 2 * 5 = 10 and 9/5 became 1.8. Brother pay attention 10 What is the power of? 8 10 to the minus power 9 What is this, isn't it, 10 power, what is it minus 8?

[01:29:39]10 Power What happened, forest is left, what is left, forest is left Any doubt brother, pay attention to these 10 power 1 Clear what happened r in equivalence surd 18 What does 18 18 mean in karni brother Speak quickly 9 * 2 in karni, speak now Quickly find the square root of 9 32 meters Any doubt baby, you can easily get it from here The answer has come 3 2 meters clear, child, you remember Look again, what do you think Given at what distance electric field will be 10 Newton per [ __ ] from the charge That is, with this charge at least 20 Newtons How much electric field at what distance The value of the electric field is given by Charge value nano less nano removing Yes, 10 power minus does not come. When this If we solve it, the value of the charge will be this much.

[01:30:34]Asked the value of electric field at a distance Has gone. Is the formula clear to you? Now here is asked for the value of r. So first of r You take out the value. The value of r is first Take it out. r² here and e here. Now Square When it goes here, it will become an under route.

[01:30:49]Because we need r. r² is not needed. r That this value has been achieved. Now the value of q is The honor was maintained. Value of Q Value of E Q / E Q The value of is and E 10 is 2 * 5 10 9/5 What does it mean brother 1.8 9/5 means 1.8 If we solve this, 10 will remain, 180, that is Answer ok clear child Let's be clear here So now pay attention, this would have been your question Now let's focus on superposition.

[01:31:28]As mentioned, the important thing is meditation.

[01:31:29]Give it to me in chapter number one and second brother.

[01:31:33]In chapter number first or anywhere Vector quantity, however, what you are reading There is superposition in chapter number one.

[01:31:39]The concept is very important brother Vector Law what child vector law see very I am telling you something important, what does it mean?

[01:31:46]Suppose such questions, such questions, child What Now you are going to discuss important questions.

[01:31:54]Pay attention to what is happening. Isn't it true sir?

[01:31:59]There is an equilateral triangle. there is a Equilateral triangle. child here -q charge Is. Here +q is the charge. Here, the charge is +q Is. So let me ask you here for a minute.

[01:32:13]Let it stay here. Isn't it? asked you Go here and ask for the charges. what is The value of electric field here? End Child, you must remember this no matter what the question is.

[01:32:24]Can. Many such questions Yes child. This type of question is very It is important. Okay, right? brother here What is? -q charge +q charge -q charge +q Charge. Brother, this can also be in value.

[01:32:39]Now this value can also be in numbers. donation What will be the value of charge at the Center? Describe the electric field here.

[01:32:46]Is. Here the value of electric field is I have to tell you brother.

[01:32:50]State the value of the electric field here.

[01:32:52]Is. When I talk about this, I talk about this What brother? Pay attention.

[01:32:59]Let me ask you. What's here?

[01:33:02]Say.

[01:33:04]2q charge. Here the charge is -q. Here +q There is charge. Anything here at the center How much will it cost at the centre, brother? Centroid. Ok?

[01:33:14]This is called centroid, right? clear Child? Pay attention, what will happen? Thus There will be many questions of this in your board exam.

[01:33:20]Are asked. This type of question Many questions are asked in your board exams.

[01:33:24]Are. So pay attention here to the same concept.

[01:33:27]Yes child. Isn't it? Here is an important It is a concept.

[01:33:32]You guys want to do class son. Hi Please reply. Do you want to take a class?

[01:33:37]Are. Should we teach this concept or not? One Should I teach you the concept, child?

[01:33:42]I am starting to feel sleepy. ok son whoever is sleepy It is absolutely true that you can sleep, right?

[01:33:49]Sleep Right Okay, let's move on from here son, I have told you This type of question is explained here You will be asked to give this type of The question asked you about electric field So what is the method to find out?

[01:34:05]electric field right what is the method to Find out the electric field in this type of question in this type of question okay Tomorrow I will discuss with you if you don't want to If you want today I hello today I discuss Let's do!

[01:34:27]Okay, wait a minute, who all are active right now?

[01:34:31]Hey baby please reply quickly Who is active? Write your name in chat.

[01:34:36]Box Write your name in the chat box Speak up baby Ok Okay, son, it's already quite late.

[01:35:00]People go to sleep tomorrow ok son this type of How will we solve the question tomorrow?

[01:35:06]We will discuss it, ok son, and you take the class.

[01:35:09]It is important that if you attend the class, you will benefit.

[01:35:11]It will happen. Okay, kid, pay attention. Ok Bye good night. Good night to all of you. Ok Come on son.