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Alternating Current and Voltage

Q1:

In both induction and synchronous ac motors

A the operating speed is very steady

B the stator magnetic field is stationary

C the stator magnetic field rotates

D the "squirrel cage" forms the rotor

ANS:C - the stator magnetic field rotates

Inductions motors are single phase and a asynchronous speed. Stator produce the rotating magnetic field. Its not rotate. But it rotates the rotor.



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