An electromechanical energy conversion device has cylindrical stator but salient pole rotor. Rotor is not excited. If is the angle between stator field and rotor long axis, then average torque developed is proportional to (A and B are constants).

An electromechanical energy conversion device has cylindrical stator b

1.	An electromechanical energy conversion device has cylindrical stator but salient pole rotor. Rotor is not excited. If is the angle between stator field and rotor long axis, then average torque developed is proportional to (A and B are constants).
A.	Asin
B.	Asin2
C.	Asin + Bsin2
D.	zero
Answer» C. Asin + Bsin2

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An electromechanical energy conversion device has cylindrical stator but salient pole rotor. Rotor is not excited. If is the angle between stator field and rotor long axis, then average torque developed is proportional to (A and B are constants).

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