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In the adjacent figure, the mutual induc...

In the adjacent figure, the mutual inducatance of the infinite straight wire and the coil is M, while the self inductance of the coil is L. The current in infinite wire is varying according to the realtion `l_(1) = alphat`, where `alpha` is a constant and `t` is the time. The time dependence of current in the coil is

A

`(Malpha)/(R )`

B

`(MalphaL)/(R )e^(-Rt//L)`

C

`(alpha)/(R )(1 - e^(-Rt//L))`

D

none of these

Text Solution

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The correct Answer is:
D
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