CUET Preparation Today
A 12 V battery connected to a 6 Ω, 10 mH coil through a switch drives a constant current in the circuit. The switch is suddenly opened. Assuming that it took 1 ms to open the switch, the average emf induced across the coil would be |
10 V 20 V 200 V 12 V |
20 V |
The correct answer is Option (2) → 20 V |
