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The potential difference between 2 plates is 450v, how many electrons are transferred

  1. May 7, 2009 #1
    1. The problem statement, all variables and given/known data
    A capacitor has a capacitance of 2.5x10-8F. In charging process, electrons are removed from one plate and placed on the other plate. When the potential difference between the plates is 450v, hoow many electrons have been transferred?


    2. Relevant equations
    C=qV


    3. The attempt at a solution
    C=qV
    q=C/V
    q=2.5x10-8/450
     
  2. jcsd
  3. May 7, 2009 #2

    diazona

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    Homework Helper

    Re: the potential difference between 2 plates is 450v, how many electrons are transfe

    So far so good, now how would you convert from a charge q to a number of electrons? (Hint: what's the charge of one electron?)
     
  4. May 7, 2009 #3
    Re: the potential difference between 2 plates is 450v, how many electrons are transfe

    charge of one electron is approximately 1.6x10^-19C. divide q by the charge for one electron.
     
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