There is a current of 1.344 amp in a copper wire whose area of cross-section normal to the length of
Channel: Doubtnut
Date: 2020-01-19

There is a current of 1.344 amp in a copper wire whose area of cross-section normal to the length of the wire is `1 mm^(2)`. If the number of free electrons per `cm^(2)` is `8.4 xx 10^(22)` then the drift velocity would be