A Square Coil of Wire with Side 9

Multiple Choice

A square coil of wire with side 9.0 cm and 8 turns sits in a uniform magnetic field of 2 T that is perpendicular to the plane of the coil.If an EMF of 0.5 V is induced in the coil when the magnetic field is reversed,find the time taken for the field reversal.

A) 0.26 s
B) 1.0 s
C) 5.8 s
D) 1.6 s
E) 0.52 s