Two coils have a mutual inductance of 0....

Two coils have a mutual inductance of `0.005 H`. the current changes in the first coil according to equation `I=I_0 sinomegat`, where `I_0=10A` and `omega=100pirad//s`. The maximum value of emf (in volt) in the second coil is

`pi`

`2pi`

`4pi`

`5pi`

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