Решение задачи по физике раздел 59 пункт 81 электро

81. Two infinitely long threads with the same linear charge density τ = 2,0 SCLC / m2 are at a distance a = 3,0 cm. What kind of work A unit of length must be performed in order to bring together these threads up to a distance b = 1,0 cm ?

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