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(III) A flat slab of nonconducting material (Fig. 22–40) carries a uniform charge per unit volume, ρE. The slab has thickness d which is small compared to the height and breadth of the slab. Determine the electric field as a function of x (a) inside the slab and (b) outside the slab (at distances much less than the slab’s height or breadth). Take the origin at the center of the slab.
FIGURE 22–40 Problem 46.
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