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A working electric motor takes a current of 1.5 A when the p.d across it is 250V. If ...

A working electric motor takes a current of 1.5 A when the p.d across it is 250V. If its efficiency is 80%, the power output is

A. 300.0W
B. 469.0W
C. 133.0W
D. 4.8W




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