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Electric field due to charged rods

  1. Feb 25, 2009 #1
    1. The problem statement, all variables and given/known data

    If I have a charged vertical rod and a point P which is distanced x from the perpendicular bisector of it. How do I find the electric field at P if x/(/l/2) < 1, where l is the length of the rod

    2. Relevant equations

    3. The attempt at a solution

    I know that the equation of an electric field due to a charged rod at P is:

    [tex] \frac{\lambda L}{(4 \pi \epsilon_0) * sqrt(x^2 + L^2/4)} [/tex]

    I don't know how to proceed further
  2. jcsd
  3. Feb 25, 2009 #2


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    Homework Helper

    I'd draw a diagram and write a formula for a uniform line of charge and evaluate the integral over the range of the coordinates for the length of the rod.
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