12th November 2019

stackexchange
16

When temperature increases does resistance increase?

Surely, upon an increase in temperature, the atoms within the thermistor would vibrate with more energy and therefore more vigorously, hence making the electrons flowing through the electric circuit more likely to collide with one of the atoms, so increasing resistance.

Why does the resistance of a metal increase with temperature?

That'swhy resistance of metal increases with temperature. When the temperature of metallic conductor increases, the velocity of free electrons increases but it also cause increase in amplitude of vibration of metallic atoms (kernels) which cause some extra hindrance or resistance in the path of free electron.
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