Railways R.R.C. (Kolkata) Solved Paper Held on 2nd Shift 9-11-2014

  • question_answer
    When the temperature of a metallic conductor increases, its resistance?

    A) increases

    B) decreases

    C) remains the same

    D) may or may not increase

    Correct Answer: A

    Solution :

    Electrical resistance of a metal rises with increase in temperature. In semiconductor, the phenomenon is adverse.


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