Question

An electric motor takes 5A current from a 220V supply line. Calculate the power of the power of the motor and electrical energy consumed by it in 2hours

Answer 1

power= v*i
= 220*5*2
=2200j/s
energy = power * time
=2200*3600
=7920000j
=7920 kj

Answer 2

Energy= VIt
= 220*5*2*60*60 = 7920kJ
Power = VI
220*5 = 1100 w