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Electric Field due to a Point Charge

  1. Jun 12, 2013 #1
    1. The problem statement, all variables and given/known data
    Looking at the picture I have attached the problem is very straight forward. In the denominator of the equations I have posted the teacher uses 2[itex]\Pi[/itex] but the book uses 4[itex]\Pi[/itex]. Can someone please explain to me why is that.


    2. Relevant equations
    Book's equation:
    attachment.php?attachmentid=59489&stc=1&d=1371058707.jpg
    Teacher's Soln:
    attachment.php?attachmentid=59490&d=1371058701.jpg

    3. The attempt at a solution
    Please refer to attached pictures.
     

    Attached Files:

  2. jcsd
  3. Jun 12, 2013 #2
    I was finally able to solve my problem. By the way from the two y points there is infinite line of charge in the z-axis. Here is my answer:
    attachment.php?attachmentid=59492&stc=1&d=1371070711.jpg
     

    Attached Files:

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