Q. $Ohm's$ law is true
A) For metallic conductors at low temperature
B) For metallic conductors at high temperature
C) For electrolytes when current passes through them
D) For diode when current flows
Explanation
(a) Because with rise in temperature resistance of conductor increases, so graph between $V$ and $i$ becomes non linear
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.