Question

There are 8.5 x 10^28 free electrons in one cubic meter of copper. When the copper conductor is worked at 155 A/cm^2 the velocity of the axial drift will be

Answer 1

Answer:

1 × 10^-4

Explanation:

J=nev

v=I/ne

= (1 / 7.4 × 10^−7) × 8.4 × 10^28

= 10^−2 / 8.4 × 1.6 × 7.4

= 1 × 10^−4