A small circular loop of area 5.00 cm2 is placed in the plane of, and concentric with, a large circular loop of radius 1.00 m. The current in the large loop is changed at a constant rate from 200 A to -200 A (a change in direction) in a time of 1.0 s, starting at t = 0.
What emf is induced in the small loop at t = 0.50 s? Take emf as positive if counterclockwise. Note that since the inner loop is small, you can assume that the B field due to the outer loop is uniform over the area of the smaller loop.