Answer Happy

The electric field strength on either side of a single, uniform and infinite sheet of electric charge of charge density o per unit area is given by o/(2€0). The field is perpendicular to the sheet. Two such charge sheets, with equal-but-opposite charge densities to, are initially co-aligned to form a single neutral sheet, but are then pulled apart by a distance d. What is the electric field strength E in the gap between the two charge sheets? E Derive an expression for the work done W per unit area of the sheets to separate them. W Check