Resistance of a metal wire of length 4 m is 26 Ω. If the diameter of the wire is 0.3 mm, what will be the resistivity of the metal at that temperature?
Answers
Answered by
2
Explanation:
A = πr^2= π (0.3 x 10^(-4))^2
R= rl/πr^2
on solving we get 1.84 x 10^(-8) ohm meter
Similar questions