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What is a transformer ? Mention two sour...

What is a transformer ? Mention two sources of energy loss in a transformer

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It is a device used to increase or decrease the AC voltages. Sources of energy loss in a tranformer : Refer Q.no.23,july-2015 Question paper.
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SUNSTAR PUBLICATION-ANNUAL EXAM QUESTION PAPER MARCH - 2017-PART - C
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