Решение задачи по физике раздел 61 пункт 44 электро

44. Two endless rectilinear conductor with equal currents flowing in the same direction, are separated by a distance b. To push them to a distance 9b, each centimeter length of the conductor is spent working 4.39 nJ. To determine the current in the conductors.

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