A 10-turn square coil of area 0.036 m² and a 6-turn circular coil are both placed at an angle of 25° to the same changing magnetic field. The voltage induced in each of the coils is the same. What is the area of the circular coil?

Question

Quizplus · Accepted Answer

The induced voltage is proportional to the product of the number of turns, the area of the coil, and the cosine of the angle with the magnetic field. Setting the expressions for both coils equal and solving for the area of the circular coil gives 0.060 m².

A 10-Turn Square Coil of Area 0