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Homework Help: Gauss's Law

  1. Oct 4, 2005 #1
    Can anyone help me with this problem? I've been working on it for hours and can't get anywhere with it, I just have no idea how to do it at this point.

    A cylindrical shell of radius 7.00 cm and length 240 cm has its charge uniformly distributed on its curved surface. The magnitude of the electric field at a point 19.0 cm radially outward from its axis (mesaured from the midpoint of the shell) is 36.0 kN/C. Find (a) the net charge on the shell and (b) the electric field at a point 4.00 cm from the axis, measured radially outward from the midpoint of the shell.

    Thanks so much.
  2. jcsd
  3. Oct 5, 2005 #2


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    Homework Helper

    As the title indicates, use Gauss' Law. The Gaussian surface should be obvious to choose and easy to evaluate because of symmetry.

    Show us what you've got so far.
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