Question

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​

Answer 1

Answer:

Power (P) is given by the expression,

P = VI

Where,

Voltage,V = 220 V

Current, I = 6 A

P= 220 x 6 = 1320 W

Energy consumed by the motor = Pt

Where,

Time, t = 2 h = 2 x 60 x 60 = 7200 s

ˆ´ P = 1320 x 7200 = 9,5.0j

Therefore, power of the motor = 9,5.0j