If armature current in a generating synchronous machine is in phase with the excitation emf, then armature mmf vector

is in the same direction as the field mmf vector.

lags behind the field mmf vector by 90 .

is in a direction opposite to the field mmf vector.

leads the field mmf vector by 90 as observed from the startor

If armature current in a generating synchronous machine is in phase wi

1.	If armature current in a generating synchronous machine is in phase with the excitation emf, then armature mmf vector
A.	lags behind the field mmf vector by 90 .
B.	is in the same direction as the field mmf vector.
C.	is in a direction opposite to the field mmf vector.
D.	leads the field mmf vector by 90 as observed from the startor
Answer» B. is in the same direction as the field mmf vector.

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If armature current in a generating synchronous machine is in phase with the excitation emf, then armature mmf vector

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