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Synchronous motor delivers lagging power at __________

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Synchronous motor delivers lagging power at __________

(a) leading pf

(b) lagging pf

(c) zero pf

(d) unity pf

This question was addressed to me by my school teacher while I was bunking the class.

This question is from Synchronous Motor Phasor Diagram in portion Synchronous Motors of Electrical Machines

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Best answer
Right answer is (a) leading pf

The explanation is: As Q < 0 for synchronous motor at leading pf.

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