A huge (essentially infinite) horizontal nonconducting sheet 10.0 cm thick has charge uniformly spread over both faces. The upper face carries+95.0 nC/m2while the lower face carries -25.0 nC/ m2. What is the magnitude of the electric field at a point within the sheet 2.00 cm below the upper face? (ε0=8.85×10-12C2/N·m2)
Select one:
A. 6.78 × 103 N/CB. 1.36 × 104 N/CC. 7.91 × 103 N/CD. 0.00 N/CE. 3.95 × 103 N/C