engineering recuitment NMDC Junior Officer (Trainee) Mock Test 2024 Electrician and Wireman Electromagnetism
A coil of 500 turns is linked with a flux of 1 mWb. If this flux is reversed in 4 ms. what is the average e.m.f. induced in the coil?
1
250 V
2
-500 V
3
500 V
4
-250 V