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3. and area A and separation d form a parallel plate the area to be a square of length L = VA with L » d. Let the vertical direction be the z axis and the horizontal direction the x axis. The potential at the top z = d is held at a potential Vo, and that at the bottom is grounded (its potential is 0. (a) Use Laplaces equation to determine the potential in the region between the plates. (b) Determine E. c) Determine the charge distribution on each plate. (d) Determine the capacitance of the parallel-plate capacitor.

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