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Homework Help: Potential change in a field

  1. Oct 27, 2007 #1
    I would be very grateful if you could help point me in the right direction. Thanks[

    b]1. The problem statement, all variables and given/known data[/b]
    If a uniform field E=5i+4j V/m what would be the change in potential from A(-1m, -1m) to B at (1m,2m).

    2. Relevant equations

    3. The attempt at a solution
    Not sure whether to do the difference between them, or use some trig.
  2. jcsd
  3. Oct 27, 2007 #2
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