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What is the power of a motor,which takes a current of 6 A from a 220V line? (a) 132kW(b) 13.2kW (c) 0.13kW(d) 1.32kW |
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Answer» Power (P) is GIVEN by the expression,P = VIWhere,VOLTAGE,V = 220 VCurrent, I = 6 AP= 220 x 6 = 1320 WEnergy consumed by the MOTOR = PtWhere,Time, t = 2 h = 2 x 60 x 60 = 7200 sˆ´ P = 1320 x 7200 = 9,5.0jTherefore, power of the motor = 9,5.0j |
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