Решение задачи по физике раздел 68 пункт 50 электро

50. In an X-ray tube, an electron beam with a current density j = 0.2 A / mm2 hits the end face of a metal rod with a cross-sectional area S = 4 ∙ 10–4 m2, beveled at an angle α = 30 °. Determine the current strength in the rod.

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