What is Coulomb's Law? | Electrostatics & Physics

本站添加: 2026-05-28

[00:00:00]Coulomb's law tells us how strongly two charges attract or repel each other. If they have opposite signs, the force pulls them together.

[00:00:10]The larger the charges, the stronger the force. It's directly proportional to the product of Q1 and Q2.

[00:00:18]But distance works differently. If we double the distance R, the force becomes four times weaker. That's why we have R squared in the denominator of the formula. The constant K simply scales the force to our system of measurement.

[00:00:34]The electric field shows the direction.

[00:00:37]It points away from the positive charge and into the negative one.