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

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1 Answers

The power of four devices = 4 × 500 W = 2000 W 

Time = 10 hours 

Therefore, the energy consumed = power × time

= 2000 × 10 Wh 

= 20000 Wh 

= 20 kWh 

= 20 units                            [1 unit = 1 kWh] 

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