A small piece of metal wire is dragged across the gap between the pole pieces of a magnet in 0.4 sec. If magnetic flux between the pole pieces is known to be `8 xx 10^(-4)`Wb, then induced emf in the wire, is

Options

A. `4 xx 10^(-3)` V
B. `8 xx 10^(-3)` V
C. `2 xx 10^(-3)` V
D. `6 xx 10^(-3)` V

Answer

C