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What are the boundaries of tetha?

  1. Aug 2, 2008 #1
    1. The problem statement, all variables and given/known data

    I need to find the circulation of F through L.
    I tried to use Gauss' law to find it, so I first found the divergence and so on.
    Anyway, somewhere in the solution I switch to polar coordinate system but I didn't changed z, what means I took the boundaries of z from r to 2-r^2 as you can see in the attach.
    My question is, can I do that or do I need to change to spherical coordinate system? and if so, what are the boundaries of tetha?

    2. Relevant equations



    3. The attempt at a solution
     

    Attached Files:

  2. jcsd
  3. Aug 2, 2008 #2

    Defennder

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    Re: Flux

    I got zero as well. I think's fine to do in cylindrical coordinates.
     
  4. Aug 2, 2008 #3
    Re: Flux

    Ok, thanks.
     
  5. Aug 2, 2008 #4

    Defennder

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    Re: Flux

    Um, what do you mean by Gauss law? Do you have any reason to believe that F denotes a conservative electric field?
     
  6. Aug 2, 2008 #5
    Re: Flux

    I think u got mistaken in the trades again :rofl:
     
  7. Aug 2, 2008 #6

    Defennder

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    Re: Flux

    Not this time :) Your first post above said something about Gauss law.
     
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