Recent content by kbwelch17

  1. K

    Two conducting cables - Gauss' Law

    I am still a little lost on this problem. I am trying to use a Gaussian surface at a distance of 61mm. How can you encompass both cylinders with one Gaussian surface while preserving symmetry?
  2. K

    A Charged Sphere with a Cavity

    Okay. I am still struggling to understand why this is different in an insulator and a conductor.
  3. K

    Two conducting cables - Gauss' Law

    Ah, so the Gaussian surface you would use around each is a circular cylinder?
  4. K

    A Charged Sphere with a Cavity

    So since charge is distributed throughout the entire sphere, if we performed the same procedure as the first question on the new sphere with a cavity the electric field would be smaller. Since a smaller sphere with the same dimensions of the cavity except with a negative charge density would...
  5. K

    How Does Gauss's Law Apply to Nonuniform Spherical Charge Distributions?

    Homework Statement A nonuniform, but spherically symmetric, distribution of charge has a charge density ρ(r) given as follows: ρ(r) = ρ0(1-r/R) for r≤R ρ(r) = 0 for r≥R where ρ0 = 3Q/∏R^3 is a positive constant. (a.) Show that the total charge contained in the charge...
  6. K

    Two conducting cables - Gauss' Law

    Homework Statement The cross section of a long coaxial cable is shown in the figure, with radii as given. The linear charge density on the inner conductor is -80 nC/m and the linear charge density on the outer conductor is -10 nC/m. The inner and outer cylindrical surfaces are respectively...
  7. K

    A Charged Sphere with a Cavity

    Homework Statement An insulating sphere of radius a, centered at the origin, has a uniform volume charge density ρ. A spherical cavity is excised from the inside of the sphere. The cavity has radius a/4 and is centered at position h(vector) , where |h(vector) |<(3/4)a, so that the entire...
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