If A is the area of cross section of conductor, `v_(d)` is the drift velocity of electrons and n is the number of electrons per unit volume, then curr
If A is the area of cross section of conductor, `v_(d)` is the drift velocity of electrons and n is the number of electrons per unit volume, then current density through conductor is
A. ne `v_(d)`
B. `(n e A)/(v_(d))`
C. `(n e v_(d))/(A)`
D. `(n/a)A v_(d)`
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