How do you find the cost of lighting a 100-W lamp for 10 hours at $0.10 per kilowatt-hour?

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How do you find the cost of lighting a 100-W lamp for 10 hours at $0.10 per kilowatt-hour?

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Answer 1 · 2018-05-08T16:32:45

$0.10

Explanation:

$E = P t$ $E=Pt$
$E = 0.100 k W \times 10 h$ $E=0.100kW xx 10h$
$E = 1.0 k W h$ $E=1.0kWh$

$cost = Energy in kWh \times R a t e$ $"Cost = Energy in kWh" xx Rate$
$cost = 1.0 k W h \times $ 0.10$ $"Cost" = 1.0kWh xx $0.10$
$cost = $ 0.10$ $"Cost" = $0.10$

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How do you find the cost of lighting a 100-W lamp for 10 hours at $0.10 per kilowatt-hour?

1 Answer

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