Discussion
The rotor of a single-phase induction motor is
Answer: B
Correct answer: a cage of the same kind as in a three-phase machine
The rotor is an ordinary squirrel cage, identical in principle to that of a three-phase machine. Everything distinguishing the single-phase machine is in the stator - the auxiliary winding, the capacitor, the switch or the shading rings - which is why the rotor is the simplest part of it.
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