infinite extent in y and z directions. In slab 1 extending over -2W <<-W, charge density p is
Po, where po = 2 C/m³. In slab 2 extending over -W slab 3 extending over 0 < x < W the charge density is -3po. Charge density p is zero everywhere else. Determine and sketch E₂ (2) over the region -3W < x < 3W. Label both axes of your plot carefully, marking the field value at each break point. Hint: use superposition of shifted and scaled versions of the static field configuration of a single charged slab. Alternatively determine Ex(x) for x » W and x < -W first, and then construct the Ex(x) plot with linear rises and drops across the slabs and verify that the plot has the correct slopes.
Fig: 1