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Electric Field due to an Infinite Line

  1. Mar 20, 2013 #1
    1. The problem statement, all variables and given/known data
    Recalling that the field due to an infinite line charge with Charge-per-unit-lenght λ is

    E=λ/2∏εx

    At distant x from the line, find the field due to an infinite "Ribbon" of charge 2cm wide, at point 2 cm from one edge in the plane of the Ribbon. The surface charge density on the Ribbon is σ=2x10-6C/m2.
    Note: Linear charge density on width dx of the ribbon is σdx


    2. Relevant equations

    E=σ/2ε

    3. The attempt at a solution
    I am lost and I am not sure how to start the problem :confused:
    vrOzo4i.jpg
     
  2. jcsd
  3. Mar 20, 2013 #2

    TSny

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    Break the ribbon into strips of infinitesimal thickness dx.
     
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