AMU Medical AMU Solved Paper-1995

  • question_answer
    Resistivity of a conductor increases with temperature because

    A)  number of free electrons increases

    B)  number of free electrons decreases

    C)  mean free path of free electrons increases  

    D)  mean free path of free electrons decreases

    Correct Answer: B

    Solution :

    : Resistivity of a conductor increases with temperature because the number of free electrons decreases.


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