1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Calculating energy of electric field

  1. Jun 16, 2010 #1
    1. The problem statement, all variables and given/known data
    (a) Consider two concentric spherical shells, of radii a and b. Suppose the inner shell
    carries a charge q and the outer shell carries -q (both of them uniformly distributed
    over the surface). Calculate the energy of the electric field in this configuration.

    2. Relevant equations

    3. The attempt at a solution
    I was just wondering if this would result in a net charge of zero, thus no electric field? And consequently no energy?
  2. jcsd
  3. Jun 16, 2010 #2
    There is no electric field outside the shells and inside the inner shell, but how about the space between the shells?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook