Question: A spherical shell has inner radius a and outer radius b, as shown. It has uniform charge density r. Spherical Shell Inner radius a

A spherical shell has inner radius a and outer radius b, as

A spherical shell has inner radius a and outer radius b, as shown. It has uniform charge density r. Spherical Shell Inner radius a Outer radius b Uniform charge density p a. If the total charge of the shell is +Q, write an expression for the charge density that depends on Q and the radii of the shell. b. How many regions do you need to find the electric field in? c. Find the electric field in each of the regions. Make sure that you draw a diagram showing the shell, the electric field, and the Gaussian surface for each region; show each step in solving for the electric field from Gauss's Law with brief reasons for each region; find the electric field in each region using the charge density r. d. Suppose that there was a point charge -3Q in the center of the shell. Find the electric field in each region again. You do NOT need to redo all the steps- just explain what is the same and what is different and find the field in each region.

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