an electric motor operates on a 50 v supply and draw current 50A of mechanical power us 150W then what is the efficiency of motor and what is the power descipiation of motor ?
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Answer: 6 %
Explanation:
Power drawn = voltage * current
= 50 * 50
= 2500 watts
Power rating = 150 watts
Efficiency =power rating/powet drawn
= 150/2500 = 0.06
= 6 %
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