Решение задачи по физике раздел 73 пункт 13 электро

13. At a certain point in the field, a force of 4 mN acts on a charge of 0.1 μC. Find the tension at this point and the charge creating the field if the point is 0.3 m away from it.

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