An infinite sheet of charge, oriented perpendicular to the [x]-axis, passes through [x = 0]. It has a surface charge density [\sigma_1 = -4.1 \mu C/m2]. A thick, infinite conducting slab, also oriented perpendicular to the [x]-axis occupiees the region between [a = 2.5 cm] and [b = 4.8 cm]. The conducting slab has a net charge per unit area of [sigma_2 = 73.0 \mu C/m2].

What is [E_x( P)], the value of the [x]-component of the electric field at point [P], located a distance [8.2 cm] from the infinite sheet of charge?

• Given