Find the energy in kwh consumed in 20 hours by four devices of
power 200w each.
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Answer:
Explanation:
Power consumed by each device = 500W = 0.5 kW
Energy consumed by each one in 10 hours -
Power = Energy / Time
0.5 = Energy / 10
Energy = 10 × 0.5
Energy = 5 kWh
Therefore, power consumed by 4 such devices = 4 × 5 kWh
= 20 kWh
= 20 units
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