Question

An electric motor takes 5 ampere from a 220 volt line determine the power of the motor

Answer 1

Answer:

44 W

Explanation:

v= 220 v

i= 5 A

R= V/I= 220/5=44 Ohm

power= v^2/r

        p= (44 x 44)/44=44 W

Answer 2

Answer:

Electric current = 5 A

potential different = 220 V

Time = 2 x 60 x 60 = 7200

P = VI

220 x 5 V

=> 1100 w

Energy consumed by motor,

=> 1100 x 7200

=> 7.92 x 10^6 J