A circular coil and a bar magnet placed nearby are made to move in the same direction. The coil covers a distance of `1m` in `0.5 sec` and the magnet a distance of `2 m` in `1 sec`. The induced emf produced in the coil

Options

A. zero
B. 0.5 V
C. 1V
D. 2V

Answer

A

Explanation

Vel. of coil `=(1)/(0.5)=2m//s`
velocity of magnet `=(2)/(1)=2m//s`.
As they are made to move in the same direction, their relative velocity is zero. Therefore, induced e.m.f. = 0.