Which of the following statements associated with polyphase induction motor is/are correct?
A. It can run in one direction only.
B. It is simply a transformer whose magnetic circuit is separated by an air gap into two relatively movable portions, one carrying the primary and other the secondary winding.
C. It needs more maintenance than that required by a dc shunt motor.
D. lt is more costly than a dc shunt motor of the same output rating.
Show Answer
Answer: B
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