If the current in the primary coil is re...

If the current in the primary coil is reduced from 3.0 ampere to zero in 0.001 second, the induced e.m.f in the secondary coil is 1500 volt. The mutual inductance of the two coils will be-

`0.5 H `

`0.05 H`

`0.005 H`

` 0.0005 H `

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