Question

A small piece of metal wire is dragged across the gap between the poles of a magnet in 0.4 s. If the change in magnetic flux in the wire is 8 x 10⁻⁴, then the induced electromotive force (EMF) in the wire is:
a) 0.2 V
b) 0.02 V
c) 2 V
d) 0.2 mV