A transformer having efficiency of 90% is working on 200 V and 3 kW power supply. If the current in the secondary coil is 6 A, the voltage across the secondary coil and the current in the primary coil respectively are :
300 V, 15 A
450 V, 15 A
450 V, 13.5 A
600 V, 15 A
Efficiency of the transformer
Option 1)
300 V, 15 A
This is incorrect option
Option 2)
450 V, 15 A
This is correct option
Option 3)
450 V, 13.5 A
This is incorrect option
Option 4)
600 V, 15 A
This is incorrect option
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