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Electric field in all regions of cylinder

  1. Apr 22, 2014 #1
    A uniform linear charge of λ is located along the z axis, and concentric circular cylinder of radius 2 [m] has a surface distribution charge of α . both distributions are infinite, the distribution of linear charge is contained in the interior of the circular cylinder as shown image.

    figura1.png

    λ = 3 * 10^-3 (C/M)
    σ = 1.54pi * 10^-3 (C/M^2)

    Determine E, in all regions

    so i was wondering if these are the formulas that i have to use or if im wrong

    exa1.png
     
  2. jcsd
  3. Apr 22, 2014 #2
    These look right, except you seem to have forgotten to cancel out the L's in the very last equation.
     
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