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Homework Help: Electric field

  1. Oct 16, 2011 #1
    What is the electric field for the following charge distribution:

    ρ = ρ0 x/a for -a < x < a
    0 elsewhere

    Use the differential form of Gauss' Law.

    I know that the differential form is [itex]\nabla[/itex] . D = ρv and that E = D/ε, but how do I find D from what is given? Do i integrate the charge distribution with respect to x?
  2. jcsd
  3. Oct 18, 2011 #2
  4. Oct 18, 2011 #3
    how would i do a triple integral with what i'm given?
  5. Oct 19, 2011 #4
    Last edited by a moderator: May 5, 2017
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