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The armature current is _______ at UPF than motor at lagging power factor.

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The armature current is _______ at UPF than motor at lagging power factor.

(a) minimum

(b) maximum

(c) zero

(d) none of the mentioned

This question was posed to me by my college director while I was bunking the class.

My question is taken from Power Factor Control of Synchronous Machines in section Synchronous Machines of Electrical Machines

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Best answer
The correct choice is (a) minimum

For explanation: At leading pf armature current will be high as the emf will be high for a synchronous motor.

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