A self-induced wmf in a solenoid of indu...

A self-induced wmf in a solenoid of inductance L changes in time as`varepsilon=varepsilon_0e^(-kz).` Assuming the charge is finite.find the total charge that passes a point in the wire of the solenoid.

`varepsilon_0/(Lk^2)`

`(2varepsilon_0)/(Lk^2)`

`varepsilon_0/(2Lk^2)`

`(3varepsilon_0)/(Lk^2)`

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