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Discussion :: Electronic Devices and Circuits

  1. If a sample of germanium and a sample of Si have the impurity density and are kept at room temperature then

  2. A.
    both will have equal value of resistivity
    B.
    both will have equal -ve resistivity
    C.
    resistivity of germanium will be higher than that of silicon
    D.
    resistivity of Si will be higher than of germanium

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    Answer : Option D

    Explanation :

    Since the majority of charge carrier is better in Ge than in Si, for the same concentration of charge carriers, the conductivity of Ge is higher than that of Si.


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