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A closely wound rectangular coil of 200 ...

A closely wound rectangular coil of 200 turns and size `0.30 xx 0.05` m is placed perpedicular to a megnetic field of induction `0.20 Wb m^(-2)` Calculate the induced e.m.f. in the coil, when megnetic induction drop to 0.15 `Wb m^(-2)` in 0.02 s.

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