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08/01/2021 3:52 pm
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A lamp consumes 1000 J of electrical energy in 10 s. What is its power?
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08/01/2021 3:55 pm
Given,
Energy consumed = 1000 J
Time = 10 s
Power = \(\frac{Energy\;consumed}{Time}\)
= \(\frac{1000 J}{10 s}\)
= \(100 Js^{-1}\)
= 100 W (∵ 1 Js-1 = 1 W)
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