27. Determine the conductivity impurity germanium, indium, which contains a concentration of 5 • 1022 m-3 and a concentration of antimony 2 • 1021 m-3. The mobility of electrons and holes in germanium are respectively 0.38 and 0.18 m 2 / (V • s).

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