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Homework Help: Electric field in a sphere

  1. Jul 3, 2011 #1
    1. The problem statement, all variables and given/known data
    [PLAIN]http://lulzimg.com/i23/62babd.jpg [Broken]

    2. Relevant equations

    3. The attempt at a solution
    im not sure why this is an answer. The first part I noticed is that it is an insulating sphere. Insulator means that all the charges cant leave the sphere. What i do know is that in a conducting sphere, charges go to the surface and the field of any distance inside the sphere is 0. Thus, I'm assuming the insulator has some effect on this..
    Last edited by a moderator: May 5, 2017
  2. jcsd
  3. Jul 5, 2011 #2
    The charge distribution is given, and the question is about the field resulting from that charge distribution.

    The charge in this hypothetical situation is spread on a hemisphere, so this is a different situation.
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