JEE Mains Model Paper 7

An inductor (L = 0.03 H) and a resistor (R = 0.15 kΩ) are connected in series to a battery of 15 V EMFin a circuit shown below. The key K1 has been kept closed for a long time. Then at t = 0, K1 is openedand key K2 is closed simultaneously. At t = 1 ms, the current in the circuit will be: (e5 = 150)