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Types of Electric Circuits Series and Parallel

In a step-up ...

Question

In a step-up transformer, the turns ratio is $5 : 1$ . The primary is connected to a battery of emf $10 V$ . The voltage across secondary is ________.

A

50 V

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B

100 V

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C

25 V

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D

Zero

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Solution

The correct option is D Zero
Transformer works only for alternating current because there will be no flux linked with the coil of transformer as the voltage is constant.

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