While the "zigzag" analogy is a practical shortcut for exam-takers, it oversimplifies the complex quantum reality of electron-phonon scattering. It is efficient pedagogy that unfortunately strips the subject of its academic rigor.
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resistance of a metal is a function of temperature #jeenityofficial #physics #shortsAdded:
Right now this current is passing through this coil at normal temperature.
If I pour this liquid nitrogen on this coil, its resistance should decrease. Meaning, this top is a little bit, because there is still no special resistance, so it will not burn that fast, but still, please turn off this light.
Its glow means that it is able to pass a little current easily. And what happened earlier was that the electrons inside the metal were in thermal agitation. Now the thermal agitation, the zigzag motion, has reduced.
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