A charge +q is suspended at the center of a hollow, electrically neutral, spherical, metallic conductor, as Figure 18.30 illustrates. The table shows a number of possibilities for the charges that this suspended charge induces on the interior and exterior surfaces of the conductor. Which one of the possibilities is correct? FIGURE 18.30 A positive charge +q is suspended at the center of a hollow spherical conductor that is electrically neutral. Induced charges appear on the inner and outer surfaces of the conductor. The electric field within the conductor itself is zero.