Question

Induction motor is analogous to __________

(a) Transformer

(b) DC machine

(c) Synchronous motor

(d) Synchronous generator

This question was posed to me by my college professor while I was bunking the class.

Query is from Induction Motors in portion Braking of DC Motors & Induction Motors of Electric Drives

Answer 1

An induction motor is analogous to a transformer. Both devices operate on the principle of electromagnetic induction. In an induction motor, the stator produces a rotating magnetic field that induces a current in the rotor, similar to how a transformer induces current in its secondary coil. The key difference is that the induction motor converts electrical energy into mechanical energy, whereas a transformer transfers electrical energy between circuits.

Thus, the correct answer is (a) Transformer.