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Two coaxial coils are very close to each...

Two coaxial coils are very close to each other and their mutual inductance is 5 mH. If a current (50 A) sin 500t is passed in one of the coils, then find the peak value of induced emf in the secondary coil.

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`i=50 sin 500t`
`"As "epsilon=(-Mdi)/(dt)`
`rArr" "epsilon=-(5xx10^(-3))50(cos 500t)xx500`
`epsilon = -125cos 500t`
`therefore" Peak value"=125V.`
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