Teaching UP TGT Mock Test Series 2025 Physics Electromagnetic Oscillations and Alternating Current Transformers
The ratio of the number of turns in secondary and primary coils of a step up transformer is 4 : 1. If the current in the primary coil is 4 amp. The current in the secondary coil is:
1
8 A
2
2 A
3
1 A
4
0.5 A