Ohm’s law is strictly obeyed by a metallic conductor only when which one of the…
PHYSICS · Single correct · CBSE · Physics · Current Electricity · Current Electricity
Problem
Ohm’s law is strictly obeyed by a metallic conductor only when which one of the following conditions is kept unchanged during the measurement?
(a) Cross-sectional area of the conductor
(b) Potential difference applied across the conductor
(c) Length of the conductor
(d) Temperature of the conductor