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show on a graph the variation of resistivity with temperature for a typical semiconductor

    • Posted by Suchit Kahar 6 years, 3 months ago

    CBSE > Class 12 > Physics
    • 1 answers

    Gaurav Seth 6 years, 3 months ago

    Semiconductors : In case of insulators and semiconductors, the relaxation time τ does not change with temperature but the number density of free electrons increases exponentially with the increase in temperature. Consequently, the conductivity increases or resistivity decreases exponentially with the increase in temperature. 

    The resistivity of a semiconductor decreases rapidly with increasing temperature.

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