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In a calculation, the actual voltage regulation is 33.1% while the calculated value of the voltage regulation is 56.8%. This infers that the chosen method has been ___________

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In a calculation, the actual voltage regulation is 33.1% while the calculated value of the voltage regulation is 56.8%. This infers that the chosen method has been ___________

(a) emf

(b) mmf

(c) asa

(d) zpf

I got this question during an interview for a job.

This key question is from Voltage Regulation of an Alternator in portion Synchronous Generators of Electrical Machines

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Best answer
Right choice is (a) emf

Easiest explanation: As the given value is more than actual, so it must be emf method.

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