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Homework Help: Electric field at point between two finite charged wires

  1. Aug 14, 2015 #1
    1. The problem statement, all variables and given/known data
    Two parallel charged wires are in vacuum. Width of wires is equal to the distance between them. Calculate electric field in the middle (point A).

    2. Relevant equations

    3. The attempt at a solution
    Using superposition, y components on vector E are cancelled. I get that the electric field at point A is
    EA=√2 λ/(πε0a)
    In my books solution, it is
    Is my solution correct?
    Note: I used integration by angle component.

    Thanks for replies.

    Attached Files:

  2. jcsd
  3. Aug 14, 2015 #2


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    Homework Helper
    Gold Member
    2017 Award

    What direction are you calling y? If the y direction is vertical (perpendicular to the wires), then how do you get that the y-components of E cancel?

    However, I do think your answer is correct for the magnitude of the net field at A and that the book solution is incorrect. We would need to see your steps in order to check that your method is correct.
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