Teaching UP TGT Mock Test Series 2025 Physics Electromagnetic Oscillations and Alternating Current Transformers
In a transformer, the number of turns in the primary and secondary coil is 50 and 40 respectively. If 220 V A.C. is applied across the primary coil, the ratio of current in the primary and secondary coil is
1
4 : 5
2
5 : 4
3
16 : 25
4
25 : 16