Second question (8) GRADIENT A perfectly conducting plane is located in free space at x=4, and a uniform line charge of 40 nC/m lies along the line x=6, y=3. Let V-0 at the conducting plane. At P (7.-1.5) find: (a) E, and (b) the surface charge density at the point (4,5,6). mortion (8 points) CYLINDRIC