- #1
morangta
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Homework Statement
Given an infinite, planar, non-conducting sheet of charge with thickness t. The volume charge density ρ is uniform. A conducting plate, held at a fixed potential V=0V, is placed parallel to the sheet at a distance d. Calculate the electric field E at all points, in all four (4) regions of the configuration.
Homework Equations
σ=εE.
The Attempt at a Solution
Given the infinite, parallel structure, all the lines of force E are parallel and normal to the sheet. Placing a cylindrical pillbox parallel to the lines of force with an end at the surface of the sheet opposite to the conductor and the other end in the sheet, use Gauss' Law σ=εE.
I could work this problem, but I don't know how to show that the electric field in the region outside the sheet and away from the conductor has a zero electric field.
Then the number of unknowns would reduce to one (1) when the pillbox is applied to the sheet.