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Q)

An inductor $(L=0.03\;H) $ and a resistor $(R= 0.15 \;k \Omega)$ are connected in series to a battery of $15\;V\;EMF$ in a circuit shown below. The key $K_1$ has been kept closed for a long time .Then at $t=0,K_1$ is opened and key $K_2$ is closed simultaneously. At $t=1\;ms$, the current in the circuit will be : $(e^5=150)$

$\begin{array}{1 1} 67\;mA \\ 6.7\;mA \\ 0.67\;mA \\ 100\;mA \end{array} $

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