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(III) A very large (i.e., assume infinite) flat slab of nonconducting material has thickness d and a uniform volume charge density +ρE. (a) Show that a uniform electric field exists outside of this slab. Determine its magnitude E and its direction (relative to the slab’s surface). (b) As shown in Fig. 22–39, the slab is now aligned so that one of its surfaces lies on the line y = x. At time t = 0, a pointlike particle (mass m, charge +q) is located at position
FIGURE 22–39 Problem 43.
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