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8 July, 19:11

A total charge of 16μc passes through a cross-sectional area of a nichrome wire in 4 s. how many electrons pass through the cross-sectional area in 16 s?

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  1. 8 July, 21:31
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    Assuming that the flow of charge remains constant, we can just multiply 16microc by 4 because we want to know the amount of charge going by in four times the time.

    16microc * 4 = 64microc

    Now to find the amount of electrons, we know that one electron has a charge of 1.6x10^-19 C so we divide 64x10^-6 C by that.

    64x10^-6 / 1.6x10^-19 = 4x10^14 electrons
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