An inductor (L = 0.03 H) and a resistance $\left(R=0.15k\Omega \right)$ are connected in series to a battery of 15V 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 $t=1ms$, the current in the circuit will be ( Given $e^5\equiv 150$)