A balanced 3 – phase induction motor runs at slip s. If ωs is its s – McqOptions

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1.	A balanced 3 – phase induction motor runs at slip s. If ωs is its synchronous speed, what is the relative speed between the stator mmf and rotor mmf ?
A.	s ωs
B.	(1 – s) ωs
C.	ωs
D.	Zero
Answer» E.

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