defence exam Army Havildar SAC Mock Test Series 2025 Physics Electromagnetic Induction and Inductance Inductors and Inductance
A choke coil is needed to operate an arc lamp at 160 V (rms) and 50 Hz. The arc lamp has an effective resistance of 5Ω when running at 10A (rms). The inductance of the choke coil is -
1
4.84 × 10-2 H
2
2.71 × 10-2 H
3
5.67 × 10-2 H
4
1.67 × 10-2 H