Question

calculate the energy consumed by the TV set of 250 watt and two fans of 65 watt running of for 3 hour in kilowatt hour

Answer 1

total energy consumption is 250+65=315
and after 3 hrs energy consumption is 3×315
=945 kilowatts
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Answer 2

Power = energy / time
Power x time = energy
(250 + 65 + 65) x 3 = energy
(250 + 130) x 3 = energy
380 x 3 = energy
1140 watt hr = energy
1.14 kwh = energy


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