1. The problem statement, all variables and given/known data An infinite sheet of charge is located in the y-z plane at x = 0 and has uniform charge denisity σ1 = 0.3 μC/m2. Another infinite sheet of charge with uniform charge density σ2 = -0.33 μC/m2 is located at x = c = 21.0 cm.. An uncharged infinite conducting slab is placed halfway in between these sheets ( i.e., between x = 8.5 cm and x = 12.5 cm). What is V(S) - V(P), the potential difference between point P and point S, located at (x,y) = (16.75 cm, -12.5 cm)? (point P is at 4.25 cm, 0 cm) 2. Relevant equations no quite sure 3. The attempt at a solution So, i thought that the electric field would be constant between the two plates. But, apparently it's not (which i still don't fully understand). Also, i realize that i can basically ignore the thick slab since it has a net of 0 charge. I got v(p) to be 1512.71, but i do not know how to go about getting v(s). Or rather the e field at s would be a good start. I know the e field at p is 35593.2.