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Electric Potential due to a charged conductor

  1. Jan 25, 2012 #1
    1. The problem statement, all variables and given/known data

    Two charged spherical conductors are connected by a long conducting wire, and a charge of 22.0 µC is placed on the combination. If the first sphere has a radius of 4.49 cm and the second has a radius of 5.68 cm, what is the electric field near the surface of each sphere? Enter the field for the first one first.

    3. The attempt at a solution
    from what i know, the system should be in electrostatic equilibrium meaning the electric potential would be the same on both spheres but then you have two variables which are the charges on each individual sphere
     
  2. jcsd
  3. Jan 25, 2012 #2

    ehild

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    Homework Helper
    Gold Member

    You do know the potential at distance r of a charged spherical conductor?

    The spheres are far apart, they can be considered as separate spheres. Write up the potential at the surface of both spheres in terms of their charge.. The potential are the same, the sum of charges is given. This gives you a system of equations for the charges.

    ehild
     
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