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How is the e.m.f. across primary and sec...

How is the e.m.f. across primary and secondary coils of a transformer related with the number of turns of coil in them?

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`("e.m.f across the primary coil")/(" e.m.f across the secondary coil ") =("number of turns in the primary coil ")/("number of turns in the secondary coil")`
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ICSE-QUESTION PAPER-2018 -SECTION-II
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