An inductor of 10 mH is connected to a 2...

An inductor of 10 mH is connected to a 20 V battery through a resistor of `10" k"Omega` and a switch. After a long time, when maximum current is set up in the circuit, the current is switched off. The current in the circuit after `mu s` is `(x)/(100)` mA Then x is equal to ____________. (Take `e^(-1)=0.37`)

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