An electric motor takes 5 A from a 220 V line. Determine the power of the motor and the energy consumed in 2 h.

Answers (1)

Given: I= 5 A  and   V= 220 V.

Power=P=VI

 P=220	imes 5=1100W

Time = 2hr=2	imes 60	imes 60=7200s

The energy consumed = power	imes time

                                    =1100	imes 7200J=7920000J

Power of motor = 1100W

Energy consumed by motor = 7920000J

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