SSC SSC JE Electrical 2025 Mock Test Series (Paper 1 & Paper 2) Electrical Machines Transformer Transformer Equivalent Circuit
A transformer has a 120 V primary and 20 V secondary rated at 4 A. The measured winding resistances are 0.3 Ω and 5 Ω for secondary and primary respectively. The total copper loss is
1
7 W
2
14 W
3
32 W
4
48 W