How much does the maximum EMF produced by a generator a rotating coil) change if the number of turns of the coil is tripled?
A) It is the same.
B) It is tripled.
C) It is increased by a factor of 9.
D) It is reduced by one-third.
E) It is impossible to tell given the information provided.

Question

Quizplus · Accepted Answer

The maximum EMF produced by a generator is directly proportional to the number of turns of the coil. If the number of turns is tripled, the maximum EMF will also be tripled (as long as the other factors such as magnetic field strength and rotation speed remain constant). Therefore, the correct option is B.

How Much Does the Maximum EMF Produced by a Generator