Q. 204.4( 121 Votes )

Find the energy in kWh consumed in 10 hours by four devices of power 500 W each.

Answer :

Given,

Power of one device = 500 W


Power of four devices = 500 × 4


= 2000 W


= kW


= 2 kW


Time = 10 h


We know that,


Power =


2 kW =


Energy consumed = 2 × 10


= 20 kWh


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