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24 July, 10:01

A red blood cell contains 4.0 107 free electrons. what is the total charge of these electrons in the red blood cell?

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  1. 24 July, 10:19
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    A single red blood cell contains 4 x 10⁷ electrons. To calculate the total charge of the electrons we have to multiply the number of electrons by the charge per single electron.

    The charge carried by a single electron is - 1.6 x 10⁻¹⁹ Coulombs / electron

    Number of electrons in a blood cell - 4 x 10⁷ electrons

    Therefore total charge of electrons in the red blood cell - 1.6 x 10⁻¹⁹ C x 4 x10⁷

    total charge - 6.4 x 10⁻¹² C
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