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15 April, 04:12

How much charge does a 9.0 v battery transfer from the negative to the positive terminal while doing 21 j of work?

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  1. 15 April, 07:13
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    Yes, except the answer should only be to 1 or 2 significant figures, because you are only given the voltage to 1 significant figure.

    E = QV = 1.6x10⁻¹⁹ x 9

    = 1.4x10⁻¹⁸ J
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