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The efficiency of a transformer is 90%. ...

The efficiency of a transformer is 90%. The transformer is rated for output of 9000 W. If the primary voltage is 1000 V and resistance of primary is one ohm then the copper losses in the primary coil will be

A

400 W

B

200 W

C

100 W

D

300 W

Text Solution

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The correct Answer is:
C
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