Решение задачи по физике раздел 66 пункт 11 электро

11. Two infinitely long filaments with the same linear charge density τ = 3.0 μC / m2 are at a distance of a = 2.0 cm. What work A per unit of length must be performed to bring these filaments to a distance of b = 1.0 cm ?

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