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Electric potential for cylindercal

  1. Aug 31, 2009 #1
    1. The problem statement, all variables and given/known data

    Around cylider with raduis a and hight 2h carries uniformly distributed volume charge ro .


    2. Relevant equations

    find the electric potential V(r) on the symmetry axis outside the cylinder ,what is the potential in the limit a goes to 0

    3. The attempt at a solution
    I use equation 2-29 in Griffiths
    and dt(tao)=s'ds.dz.d(fi).da
    da=2pi s l =2pi (2h) s'=4pi h s'
    and r=(R^2+z-z')squar root
    i don't know how take the INT for last term dz/(R^2+z-z')squar root
     
  2. jcsd
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