Question

When a conductor of cross-sectional area 5.0 x 10 m carries a current of 6.0A, the drift velocity of the conduction electrons is 1.2x10 ms what is the number density (number per unit volume) of the conduction electrons ?

Answer 1

Answer:

Estimate the average drift speed of conduction electrons in a copper wire of cross-sectional area 2.5 × 10−7 m2 carrying a current of 1.8 A. Assume the density of conduction electrons to be 9 × 1028 m−3.