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If the frequency at the primary supply is varied gradually, then the secondary terminal voltage will __________

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If the frequency at the primary supply is varied gradually, then the secondary terminal voltage will __________

(a) not change

(b) vary directly

(c) will vary oppositely

(d) will vary inverse of frequency

I had been asked this question during an interview for a job.

The origin of the question is Equivalent Circuit of Transformer topic in division Transformers of Electrical Machines

1 Answer

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Best answer
Right answer is (a) not change

For explanation: The changes in the frequency is not reflected due to the flux density variation correspondingly.

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