Doubling the diameter of a loop of wire produces what change of induced emf?
A) The induced emf is 4 times as much.
B) The induced emf is twice as much.
C) There is no change in the induced emf.
D) The induced emf is 6.28 times as much.

Question

Quizplus · Accepted Answer

Doubling the diameter of a loop of wire increases the area by a factor of four (since area is proportional to the square of the diameter), thus increasing the induced emf by four times according to Faraday's law of electromagnetic induction.

Doubling the Diameter of a Loop of Wire Produces What