Calculate the electric energy in kWh in a day. If a motor of power 5 00 watt work for 2 hours per day.
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Explanation:
Power of each device, P=500 W=0.5 kW
Time for which the devices are used, t=10 hours
Thus energy consumed by 4 devices, E=4×P×t
E=4×0.500×10 kWh
⟹E=20 kWh
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