Example (3-1): A metal object having a length (10 m), cross section area (0.5 mm²), and resistance (0.34 Q) is connected to a potential difference source (5 V). If the density (concentration) of free electrons equals (8.5*102%electron/m³), Calculate: 1) The object's conductivity. 2) The electron's mobility. 3) The current density through the object.

Example (3-1): A metal object having a length (10 m), cross section area (0.5 mm²), and resistance (0.34 Q) is connected to a potential difference source (5 V). If the density (concentration) of free electrons equals (8.5*102%electron/m³), Calculate: 1) The object's conductivity. 2) The electron's mobility. 3) The current density through the object.