Решение задачи по физике раздел 44 пункт 55 электро

55. The electrostatic field is created positively charged with a constant surface density σ = 10 nC / m2 infinite density. What kind of work have to make in order to move the electrons along the line of tension from a distance r1 = 2 cm and r2 = 1 cm?

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