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jmtome2
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Homework Statement
"When a block of insulating material such as Lucite is bombarded with high-energy electrons, the electrons penetrate into the material and remain trapped inside. In one particular instance a 0.1 mA beam bombarded an area of 25cm[tex]^{2}[/tex] of Lucite (Class A: [tex]\epsilon_r[/tex]=3.2) for 1 second, and essentially all the electrons were trapped about 6mm below the surface in a region about 2mm thick. The block is 12mm thick. In the following calculations neglect edge effects and assume a uniform density for the trapped electrons. Assume also that both faces of the Lucite are in contact with grounded conducting plates. Lucite is a Class-A dielectric. What is the bound charge density in the charged region?"
Homework Equations
Gauss' Law
The Attempt at a Solution
Just curious how the grounded plates affect the E field? Can this configuration be treated as a typical parallel capacitor?
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