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themagiciant95
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Homework Statement
Two large, flat metal plates are held parallel to each other and separated by a distance d.· They are connected together at their edge by a metal strip. A thirt plastic sheet carrying a surface charge [tex]\sigma[/tex] per unit area is placed between the plates at a distance 1/3*d from the upper plate.
Call E1 and E2 the electric field near the upper and lower plates, respectively. What are E1 and E2?
Homework Equations
The Attempt at a Solution
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Im trying to find a good starting point for solving this problem.
First of all,I suppose that the electric field is constant and perpendicular to the plates in every point. But i don't know why. Can you help me ?