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Jackson Problem 3.12/3.18 -- Electric potential near two plates

  1. Sep 14, 2015 #1
    1. The problem statement, all variables and given/known data
    I need to solve a problem like Jackson 3.18. I need to find potential due to the same configuration but the position of two plates is opposite i.e. Plate at Z=0 contains disc with potential V and plate at Z=0 is grounded.

    2. Relevant equations


    3. The attempt at a solution
    I think solution of problem 3.12 gives half of the solution as the value of potential in terms of bessel solution. But, i can't figure out what additional things must be done to complete this problem in addition to problem 3.12.
     

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    Last edited by a moderator: Sep 14, 2015
  2. jcsd
  3. Sep 15, 2015 #2

    TSny

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    Hello, and welcome to PF!

    You need to reconsider the function Z(z). The boundary condition for this function changes when going from prob. 3.12 to prob. 3.18.
     
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