Question

What is power of an electric motor when it consumes energy of 9×10³J in 3s?

Answer 1

given:

work done=$9$×$10^{3} = 9$×$1000=9000$J

time= 3s

to find:

power of the electric motor.

solution:

we know that,

$power= \frac{work }{time} =\frac{9000}{3} = 3000watt$

therefore, power of the electric motor is 3000 watts.