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Calculate the work done by a Generator

  1. Oct 20, 2008 #1
    1. The problem statement, all variables and given/known data

    How much work is done by a generator or some other source of potential difference in moving 1 mole of electrons from an initial point of electric potential 9.00 V to where the potential is -5.00 V


    2. Relevant equations

    Im sure what to do



    3. The attempt at a solution

    I calculated the molecular weight of 1 mole of electrons, 5.49 x 10^-21 kg. Then I got extremely stumped. I'm a beginner at electromagnetism so im not sure what to do at this point.
     
  2. jcsd
  3. Oct 20, 2008 #2

    LowlyPion

    User Avatar
    Homework Helper

    A mole of electrons is a Faraday. You might want to look up how many coulombs a Faraday is. This is a measure of charge.

    As to Work that is generally just charge * change in voltage. (Vf - Vi) * coulombs
     
  4. Oct 20, 2008 #3
    thanks i really appreciate your help
     
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