The figure below shows a cross section through a very large nonconducting slab ofthickness d=9.40 mm and uniform volume charge density p=5.80 fC/m3. The originof an x axis is at the slab’s centre. What is the magnitude of the slab’s electric fieldat an x coordinate of (a) 0, (b) 2.00 mm, (c) 4.70mm, (d) 26 mm?
