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How many kilowatt-hours would a 500 watt heater use in 10 hours?
Wiki User
∙ 8y ago
1 kW = 1000 w
So 500 W / 1000 W = 0.5 kW
As soon at the heater is turned on, it starts to use energy at the rate of 500 W = 0.5 kW.
If you leave it on for 10 hours it will have used up 0.5 x 10 = 5 kWh
Wiki User
∙ 8y ago
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