ICSE Class 10 Physics 2018 Solved Paper

Question : 28

Total: 78

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

Solution:

For a transformer,

‌‌ e.m.f. across the secondary coil ‌(E s)

‌‌ e.m.f. across the primary coil ‌(Ep)

‌=‌

‌ number of turns in the secondary coil ‌(NS)

‌ number of turns in the primary coil ‌(NP)

or ‌‌

E s

=‌

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