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The flux involved in the emf equation of a transformer has __________

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The flux involved in the emf equation of a transformer has __________

(a) rms value

(b) average value

(c) total value

(d) maximum value

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The question is from Equivalent Circuit of Transformer in portion Transformers of Electrical Machines

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Correct option is (d) maximum value

For explanation: The flux is always taken at its peak in the practical calculation cases.

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