Решение задачи по физике раздел 67 пункт 87 электро

87. Under the influence of an electrostatic field of a uniformly charged infinite plane, a point charge q = 2 nC has moved along the field line by a distance r = 1 cm; at the same time, 8 mJ was completed. Determine the surface charge density in the plane.

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)