A copper wire of cross sectional area 2.0 `mm^(2)`, resistivity `=1.7
Channel: Doubtnut
Date: 2020-02-09

A copper wire of cross sectional area 2.0 `mm^(2)`, resistivity `=1.7xx10^(-8)Omegam`, carries a current of 1 A. The electric field in the copper wire is