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A three phase, salient pole synchronous motor is connected to an infinite bus. It is operated at no load a normal excitation. The field excitation of the motor is first reduced to zero and then increased in reverse direction gradually. Then the armature current. 

(A) Increases continuously (B) First increases and then decreases steeply (C) First decreases and then increases steeply (D) Remains constant
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A three phase, salient pole synchronous motor is connected to an infinite bus. It is operated at no load a normal excitation. The field excitation of the motor is first reduced to zero and then increased in reverse direction gradually. Then the armature current. First increases and then decreases steeply

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B
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