42. Determine the average velocity <υ> of the ordered movement of electrons in a copper wire with a cross-sectional area S = 0.4 mm2 if a current of I = 0.6 A passes through it. The concentration of conduction electrons in copper is n = 3.0 ∙ 1025 m −3.

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