Question

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

Answer 1

Answer:

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