#### 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 : Option 1) 300 V, 15 A Option 2) 450 V, 15 A Option 3) 450 V, 13.5 A Option 4) 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