J & K CET Engineering J and K - CET Engineering Solved Paper-2006

  • question_answer
    Resistance of a semiconductor

    A)  increases with increase in temperature

    B)  decreases with increase in temperature

    C)  is not affected by change in temperature

    D)  increases for germanium and decreases for silicon

    Correct Answer: B

    Solution :

    The electric resistance of a typical intrinsic (rion   doped)   semiconductor  decreases exponentially with temperature \[R={{R}_{0}}\,{{e}^{\alpha /T}}\]


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