JEE Main 25 July 2021 Shift 1 Solved Paper

An inductor of 10mH is connected to a 20Vbattery through a resistor of 10kΩ 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 1µs is

x

100

mA. Then xis equal to ______. (Take e−1=0.37 )