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science-physics

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a battery of 12v supplies a charge of 1000C to an electric device. how much work is done by the battery in moving the charge?

  • science-physics -

    (1/2) C V^2 = 72000 J

  • science-physics -

    In this question
    We have v=12
    Q=1000c
    Now we know v=w/Q
    W=Q×v
    =12×1000
    =12000joule

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