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29 June, 00:58

A television uses 150 w of power. how much energy does it use in 20 seconds?

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  1. 29 June, 03:52
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    Energy used by television in 20 seconds = 3000 J

    Explanation:

    We have expression for power, P = Work / Time

    Here we have power of television = 150 Watts

    Time of working of television = 20 seconds.

    We need to find energy it uses in 20 seconds, that is we need to find work done by electricity in 20 seconds.

    Work done = Power x Time = 150 x 20 = 3000 J

    Energy used by television in 20 seconds = 3000 J
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