Physics, help!

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How many protons are needed to produce a total charge of 2.5*10^-15 C?

  • Physics, help! -

    Proton charge is same as electron charge but positive in sign
    +1.6*10^-19 * n = 2.5 * 10^-15
    n = 1.5625 * 10^(-15+19)
    = 15,625

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