A rectangular loop of wire is placed perpendicular to a uniform magnetic field and then spun around one of its sides at frequency f.The induced emf is a maximum when:
A)the flux is zero
B)the flux is a maximum
C)the flux is half its maximum value
D)the derivative of the flux with respect to time is zero
E)none of the above

Question

Quizplus · Accepted Answer

The induced emf is maximum when the rate of change of magnetic flux through the loop is maximum, which occurs when the flux is zero.

A Rectangular Loop of Wire Is Placed Perpendicular to a Uniform