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Uncharged spherical conducting shell!

  1. Jul 15, 2014 #1

    VU2

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    An uncharged spherical conducting shell surrounds charge -q at the center of the shell. Then a charge+ +3q is placed on the outside of the shell. When static equilibrium is reached, the charges on the inner and outer surfaces of the she are respecteively... +q,-q is the answer.

    Does the +3q charge play any roll in that answer? Help. Thanks!
     
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  3. Jul 15, 2014 #2

    SammyS

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    Do you know Gauss's Law ?
     
  4. Jul 15, 2014 #3

    VU2

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    Yes, its E=q/[ε*area], where q is the charge enclosed.
     
  5. Jul 15, 2014 #4

    SammyS

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    That should give you your answer.
     
  6. Jul 15, 2014 #5

    VU2

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    So +3q charge doesn't play any roll at all right?
     
  7. Jul 15, 2014 #6

    SammyS

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    That is correct, as far as the total charge on the exterior. However,the +3q does affect the distribution of that charge.
     
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