An infinite sheet of charge is located in the y-z plane at x = 0 and has uniform charge denisity σ1 = 0.35 μc/m2. another infinite sheet of charge with uniform charge density σ2 = -0.54 μc/m2 is located at x = c = 31 cm.. an uncharged infinite conducting slab is placed halfway in between these sheets ( i. e., between x = 13.5 cm and x = 17.5 1)what is ex(p), the x-component of the electric field at point p, located at (x, y) = (6.75 cm, 2). what is σa, the charge density on the surface of the conducting slab at x = 13.5 cm?