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Homework Help: Flow of electrons (electricity/mechanics problem)

  1. Apr 25, 2005 #1
    So here's the problem:

    I've already figured part a by setting potential energy (equalling charge multiplied by potential difference) equal to kinetic energy. My answer is 6.49*10^7 m/s.

    However, b is where I'm having trouble. I don't know how to go about it. Could someone please point me in the right direction?
  2. jcsd
  3. Apr 25, 2005 #2
    Since each electron has a charge of its own, the total charge for n number of electrons is the n times the charge of the electron
    that is [tex] Q = Ne [/tex]
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