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Assertion: Transformers are used only in alternating current source not in direct current.
Reason : Only a.c. can be stepped up or down by means of transformers.
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Reason : Only a.c. can be stepped up or down by means of transformers.
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If both assertion and reason are true and reason is the correct explanation of assertion
Transformers which convert low voltages into higher ones are called step-up transformers, while those which convert high voltages into lower ones are called step-down transformers. This is possible only for a.c. source and not for d.c. source.
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