Suppose an emf is induced in a loop of wire by rotating the loop in a magnetic field. If the diameter of the loop were twice as large, how would the induced emf compare?

▸

The induced emf would be 4 times as much.

▸

The induced emf would be twice as much.

▸

There would be no change in the induced emf.

▸

The induced emf would be 6.28 times as much.