Question

an electrical motor takes 5a from a 220 v line . Determine the power of the motor and the energy consumption in 2h

Answer 1

Answer:

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Explanation:

V=220V

I=5A

P = V×I

P= 220×5

P=1100W

t=2h=2×60×60=7200s

P=1100×7200=7.92×10^6J

Power of the motor is 1100W

Energy consumed by the motor is 7.92×10^6J

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Answer 2

Answer:

Electric current = 5 A

potential different = 220 V

Time = 2 x 60 x 60 = 7200

P = VI

220 x 5 V

=> 1100 w

Energy consumed by motor,

=> 1100 x 7200

=> 7.92 x 10^6 J