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I really need help so heres the question: "A 100 watt lightbulb is on for 2 hours a day" What is the energy in watt-hour (Wh) it consumes per day?
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I really need help so heres the question: "A 100 watt lightbulb is on for 2 hours a day" What is the energy in watt-hour (Wh) it consumes per day?

User Andrea T
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1 Answer

4 votes

Answer:

Step-by-step explanation:

You have to assume the lightbulb consumes 100 watts of power. If it gives off 100 watts equivalent of light, you cannot solve the problem.

W = 100 watts

T = 2 hours

Energy = W * h

Energy = 100 * 2

Energy = 200 watt*hours

User Fdh
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