Electric flux density in polarized medium. A uniform line charge density of PI = 4 μC/m, is located along the z axis in free space. A planar surface charge density p, = 20 μC/m2 is placed at x = 1, parallel to the yz plane.
(a) Find the electric flux density at a general point P(x, y, z).
(b) Find the electric flux density at point P(1, 0, 0).
(c) What is the polarization vector at a general point P(x, y, z), if space has a dielectric constant ε= 4ε0.