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Taking the vector E out of the Electric potential equation

  1. Jun 10, 2008 #1
    the Electric field depends on the distance between the electric source and the point of measurement. Why can you take E out of the integral V = E dot dr? After all, E can't be constant from infinity to r sub zero...right? Is the integral supposed to be an approximate value?

    need some assistance.
     
  2. jcsd
  3. Jun 10, 2008 #2
    oh, I get it now....it was for a uniform field. never mind.
     
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