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Parallel and Series Combination of Capacitors

21.An infinit...

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21.An infinitely large layer of charge of uniform thickness t is placed normal to an existing uniform electric field. The charge on the sheet alters the electric field so that it still remains uniform on both the sides of the sheet and assumes values E1 and E2 as shown in the figure. The charge distribution in the layer is not uniform and depends only on the distance from its faces. Find the expression of the force F per unit area experienced by the charge layer.

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