J & K CET Engineering J and K - CET Engineering Solved Paper-2015

  • question_answer
    Conductivity of semiconductors             

    A)  is maximum at 0 K

    B)  Decreases with increase in temperature

    C)  Increases with increase in temperature

    D)  is maximum at 300 K

    Correct Answer: C

    Solution :

    As temperature increases covalent bonds are broken. Large number of electron-hole pairs are created. Thus, conductivity of semiconductor increases with increase of temperature.


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