Question

Find the energy of in kwh comsumed in 10 hours by four devices of power 500w each

Answer 1

20kwh

Explanation:

Power of each device, P=500 W=0.5 kW

Time for which the devices are used, t=10 hours

Thus energy consumed by 4 devices, E=4×P×t

E=4×0.500×10 kWh

⟹E=20 kWh