Problem 3.10 A uniform line charge It is placed on an innite straight wire, a dis- tance at above a grounded conducting plane. (Let's say the wire runs parallel to the x-axia and directly above it, and the conducting plane is the xy plane.) (a) Find the potential in the region above the plane. [Hint Refer to Prob. 2.52.] (b) Find the charge density or induced on the conducting plane. Problem 2.52 Two infinitely long wires running parallel to the x axis carry uniform charge densities +% and -2 (Fig. 2.54). - 7 X FIGURE 2.54