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Homework Help: Flux through a face of a cube

  1. Mar 22, 2013 #1
    1. The problem statement, all variables and given/known data

    A point charge +Q is placed at the center of a cube. What is the electric flux through a face of the cube?

    2. Relevant equations

    Flux = Q/ε

    3. The attempt at a solution

    The answer is Q/(4ε), but I thought it should be Q/(6ε) which isn't even an option. I'm I crazy? Since there are six faces and all will get equal flux, and the total flux is Q/ε
  2. jcsd
  3. Mar 22, 2013 #2


    User Avatar
    Homework Helper
    Gold Member

    Q/6ε is correct.
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