2. This problem refers to Figure 2. The inner, solid, infinitely long cylinder has a radius l (when viewed from the side). Suppose the solid cylinder has a uniform charge density p (this is charge per unit volume). The outer, hollow, infinitely long cylindrical shell (idealized as zero thickness) has a radius L (when viewed from the side). Suppose the hollow cylindrical shell has a charge density o (this is charge per unit area). By assumption, l < L. The solid cylinder and the cylindrical shell share a common center (see side view). Find the electric field at a point which is at radius r, for (a) r