NEET Sample Paper NEET Sample Test Paper-90

  • question_answer
    A piece of copper and another of germanium are cooled from room temperature to \[80{}^\circ \,\,K.\] The resistance of

    A) each of them increases

    B) each of them decreases

    C) copper increases and germanium decreases

    D)  copper decreases and germanium increases

    Correct Answer: D

    Solution :

    [d] Copper is a metal whereas Germanium is Semi-conductor. Resistance of metal decreases and semiconductor increases with decrease in temperature.


You need to login to perform this action.
You will be redirected in 3 sec spinner