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A primary coil and secondary coil are placed close to each other. A current, which changes at the rate of $25 \mathrm{~A}$ in a millisecond, is present in the primary coil. If the mutual inductance is $92 \times 10^{-6} \mathrm{H}$, then the value of induced emf in the secondary coil is
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$2.3 \mathrm{~V}$
The induced emf in secondary coil.
$e=M \frac{d i}{d t}=92 \times 10^{-6} \times \frac{25}{1 \times 10^{-3}}=2.3 \mathrm{~V}$
$e=M \frac{d i}{d t}=92 \times 10^{-6} \times \frac{25}{1 \times 10^{-3}}=2.3 \mathrm{~V}$
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