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Electric Charge on a Sphere

  1. Nov 18, 2007 #1
    1. The problem statement, all variables and given/known data

    You have an electrically charged sphere.

    The strength of an electric field 0.1 m away from the center of the sphere is 30,000 N/C.

    The radius of the sphere is 0.05 m.

    What is the electric charge (Q) of the sphere?

    2. Relevant equations

    E = F/q - E = -V/d

    3. The attempt at a solution

    I don't know how to attempt this problem, I'm not even sure if these equations are relevant. Someone please help.
  2. jcsd
  3. Nov 18, 2007 #2
    Nevermind, I got it. 3.3E-8 C
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