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

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asked Oct 17, 2017 in Physics by jisu zahaan (28,760 points) 26 374 807

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

1 Answer

+1 vote
answered Oct 17, 2017 by sforrest072 (157,439 points) 60 409 933
selected Feb 2, 2018 by sanjeev
 
Best answer

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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