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How long would it take for a 60W light bulb to do 5400J of work?
Wiki User
∙ 14y ago
60 watts = 60 joules per second
5,400 joules = (5,400 / 60) = 90 seconds, at the rate of 60 watts
But we must disagree with the language of the question.
At the rate of 60 watts, it takes 90 seconds to use 5,400 joules of energy. But no work is done.
The energy is converted into electromagnetic energy, in the form of heat and light, and it's
carried away from the light bulb by the E&M radiation.
Wiki User
∙ 14y ago
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