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Electrical fields of spherical shells

  1. Jul 19, 2015 #1
    Hello,

    I am in a calc 1 general physics 2 summer session class and missed the lectures on this due to sickness. I'm really confused on applying coulomb's and gauss's laws to find the electrical field of a sphere or outside a sphere. This is of both variable and constant charge densities. I've been really struggling on this and feel retarded.

    What is the exact process I need to apply to come up with the electrical field E:

    1. of a sphere of uniform charge density ρ = cst inside the entire sphere

    2. of a sphere of uniform charge density ρ = cst outside the sphere on a spherical shell of outer radius r

    3. of a sphere of variable charge density ρ = ƒ(inner radius) inside the entire sphere

    4. of a sphere of uniform charge density ρ = ƒ(inner radius) outside the sphere on a spherical shell of outer radius r

    I can provide sample problems if needed.

    thank you
     
  2. jcsd
  3. Jul 19, 2015 #2

    Orodruin

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    It is a simple matter of applying the divergence theorem for a sphere of any given radius.
     
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