An AC motor can be turned into an AC generator by
A) reversing the poles of the permanent magnets.
B) applying a reverse voltage to the terminals of the motor.
C) mechanically rotating the coils instead of applying a voltage to the coil.
D) replacing the magnet with an armature coil and vice versa.
E) applying a DC voltage instead of an AC voltage.

Question

Quizplus · Accepted Answer

An AC motor can be turned into an AC generator by mechanically rotating the coils instead of applying a voltage to the coil. This is known as the principle of electromagnetic induction, where a changing magnetic field induces an electromotive force (EMF) in a conductor. As the coils are rotated, they cut through the magnetic field produced by the permanent magnets, which induces an alternating current (AC) in the coils. The AC can then be collected and used as electricity. Reversing the poles of the permanent magnets, applying a reverse voltage, replacing the magnet with an armature coil, or applying a DC voltage instead of an AC voltage will not turn an AC motor into an AC generator.

An AC Motor Can Be Turned into an AC Generator