True or False: The rotor in an induction motor is connected to AC or DC power.

The correct answer is that the rotor in an induction motor is not connected directly to either AC or DC power. Instead, the rotor of an induction motor operates based on electromagnetic induction produced by the stator’s alternating current (AC) field. This means that while the stator is supplied with AC power to create a rotating magnetic field, the rotor itself does not receive any direct electrical power. Instead, it induces a current due to the changing magnetic field, which then generates torque and enables the rotor to turn.

In contrast, choices that suggest the rotor is connected to either AC or DC power misconstrue how induction motors function. Induction motors are specifically designed to work with alternating current, and while the rotor generates currents as a response to the magnetic field, it remains independent of any direct power connection. This distinction underpins the operation of induction motors and highlights the nature of electromagnetic induction.