engineering recuitment PGCIL Junior Technician Trainee (Electrician) Mock Test 2023 Electrical Machines Transformer Auto Transformer
In an autotransformer with transformation ratio, \(K = \dfrac{V_2}{V_1}\), the copper saving is ______ times the weight of ordinary transformer.
1
2 K
2
2.4 K
3
0.5 K
4
K