railway RRB Technician Grade 1 Mock Test 2024 Physics Electromagnetic Induction and Inductance Self-Induction
When the current changes from +2A to -2A in 0.05 second, an emf of 8V is induced in the coil. The coefficient of self inductance of the coil is
1
0.05 H
2
0.1 H
3
0.2 H
4
0.8 H