The magnitude of the e.m.f. across the secondary of a transformer does not depend on :

the number of the turns in the primary

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the number of the turns in the secondary

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the magnitude of the e.m.f applied across the primary

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the resistance of the primary and the secondary

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Solution

The correct option is D the resistance of the primary and the secondary
The magnitude of emf across the secondary of a transformer depends on the number of turns in the primary and secondary coils, and also on the emf applied across the primary coils. It does not depend on the resistance of the primary and the secondary coils.

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