Mmf produced by the current of a 3-phase induction motor

1.	Mmf produced by the current of a 3-phase induction motor
A.	rotates at the speed of rotor in the air gap
B.	is stand still with respect to startor mmf
C.	rotates at slip speed with respect to startor mmf
D.	rotates at synchronous speed with respect to rotor
Answer» C. rotates at slip speed with respect to startor mmf

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Mmf produced by the current of a 3-phase induction motor

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