The phasor addition of stator and rotor mmfs in a cylindrical rotor sy – McqOptions

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1.	The phasor addition of stator and rotor mmfs in a cylindrical rotor synchronous machine, is possible because
A.	mmfs are rotating in opposite direction
B.	mmfs are rotating in same direction at different speeds
C.	mmfs are stationary with respect to each other
D.	one mmf is stationary and the other mmf is rotating
Answer» D. one mmf is stationary and the other mmf is rotating

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