Решение задачи по физике раздел 67 пункт 89 электро

89. A point charge q = 0.66 nC is located near a charged infinitely extended plane. The charge moves along the field strength line to a distance Δr = 2 cm; at the same time, work A = 50 erg is performed. Find the surface charge density σ in the plane.

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