a)Find the electric Field just inside the paint layer b)Find the electric field

Question

a)Find the electric Field just inside the paint layer b)Find the electric field just outside the paint layer c)Find the electric field 9.50cm outside the surface of the paint layer A charged paint is spread in a very thin uniform layer over the surface of a plastic sphere of diameter 19.0cm , giving it a charge of -20.0uC?C Find the electric Field just inside the paint layer Find the electric field just outside the paint layer Find the electric field 9.50cm outside the surface of the paint layer

Explanation / Answer

If the charge is uniformly distributed on the surface of a sphere, the electric field outside the sphere will be the same as if the entire charge were concentrated in the center of the sphere. The electric field inside the sphere would be zero.

Because the electric field in a would be measured inside the (uniformly-charged) sphere, the electric field for part a would be zero. For the other two cases, we get
E = q / (4??or

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