Figure (a) shows three plastic sheets that are large, parallel, and uniformly charged. Figure (b) gives the component of the net electric field along an x axis through the sheets. The scale of the vertical axis is set by Es = 9.0 × 105 N/C. What is the ratio of the charge density on sheet 3 to that on sheet 2? 3 (a) (b) (5/N „01) 7

Figure (a) shows three plastic sheets that are large, parallel, and uniformly charged. Figure (b) gives the component of the net electric field along an x axis through the sheets. The scale of the vertical axis is set by Es = 9.0 × 105 N/C. What is the ratio of the charge density on sheet 3 to that on sheet 2? 3 (a) (b) (5/N „01) 7