Question

Which component is found only in electric generators and not in electric motors?

a commutator
brushes
an armature
slip rings

Answer 1

The answer is D. Slip rings.

Answer 2

The correct choice is

slip rings

All components are common in AC generator and electric motor except slip rings. In AC generator, the output oscillate between positive and negative values of current and voltage. This is achieved by making the use of slip rings which makes the output voltage and current oscillate.

On the other hand, slip rings are not used in electric motor.