Question

find the energy in kwh consumed in 10 hrs by four devices of power 500w each

Answer 1

energy=P×t
=5×10×4
200 kwhr

Answer 2

Answer:

Known Terms:-

KWh = kilowatt hour

W =  Watt

Given:-

Power consumed by four device = 500 W =  = 0.5 kW

Time taken to consume the devices = 10 hours

To Find:-

Energy consumed.

Formula to be used:-

Power = Energy/Time

Solution:-

Power = Energy/Time

Energy = Power × Time

Putting all the values, we get

Energy = 0.5 × 10

Energy = 5 kWh

Energy consumed by four devices

= 4 × 5

= 20 KWh or (20 units)

Hence, Energy in kWh consumed in 10 hrs by four devices is 20 KWh.