J. An electric motor
consumes 4 units of electrical
enengy in two hours ate supply of 220V.
Give its powen wating. Also find cuwent crawan.
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Answer:
power (P) is given by the expression,
P=4
where
voltage,V=220V
Current,I=5a
P=220×5=1100W
energy consumed by the motor =pt
where ,
time ,t=2h=2×60×60=7200s
o=1100×7200=7.92 ×106 J
therefore the power of the motor =1100W
energy consumed by the motor =7.92×196J.
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