An aluminium wire carrying a current has diameter `0.84 mm`. The electric field in the
Channel: Doubtnut
Date: 2020-07-26

An aluminium wire carrying a current has diameter `0.84 mm`. The electric field in the wire `0.49 V//m`. What is (a) the current carried by the wire?  (b) the potential difference between two points in the wire `12.0 m` apart? (c) the resistance of a `12.0 m` length of this wire? Specific resistance of aluminium is `2.75 xx 10^-8 Omega -m. `