Question

How resistance of a metal varies with temperature and why?

Answer 1

$\huge\underline\orange{\mathcal Answer}$

The resistance of metals rises with increasing temperature. The resistance semiconducting materials falls with increasing temperature.

Answer 2

Answer:resistance of metals increases with increase in Temperature

Explanation:as the metals have already a good amount of free electrons as the temperature rises the no of free electrons increases ,resulting in more collision causing greater resistance