College Physics 10th Edition by Raymond Serway,Chris Vuille

تمرين 61

A nonconducting, thin plane sheet of charge carries a uniform charge per unit area of 5.20 C/m 2 as in Figure 15.30. (a) Find the electric field at a distance of 8.70 cm from the plate. (b) Explain whether your result changes as the distance from the sheet is varied.