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Finding volume charge density of nonconducting spherical shell

  1. Feb 13, 2012 #1
    The figure below shows a closed Gaussian surface in the shape of a cube of edge length 2.20 m. It lies in a region where the electric field is given by = [ (3.00x + 4.00) + 6.00 + 7.00 ] N/C, where x is in meters. What is the net charge contained by the cube?

    So i used the x value of the electric field and took that times the the cube length squared or area divided by the permittivity of space and then times two because there are two sides. This probably isn't right but that's what I thought you had to do.

    3 * 2.2^2 *2 / 8.85E-12
     
  2. jcsd
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