Teaching UP TGT Mock Test Series 2025 Physics Electromagnetic Oscillations and Alternating Current Transformers
A 220-volt input is supplied to a transformer. The output circuit draws a current of 2.0 ampere at 440 volts. If the efficiency of the transformer is 80%, the current drawn by the primary windings of the transformer is
1
5.0 ampere
2
3.6 ampere
3
2.8 ampere
4
2.5 ampere