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A transformer having efficiency of 90% i...

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

A

300 V, 15 A

B

450 V, 15 A

C

450 V, 13.5 A

D

600 V, 15 A

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The correct Answer is:
B
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