2. Solved Papers
  3. Chhattisgarh PMT

Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2004

  • question_answer
    Two wires P and Q made up of different materials have same resistance at room temperature, when heated, resistance of P increases and that of Q decreases. We conclude that

    A)  P and Q both are conductors but because of being made of different materials it happens so

    B)  P is n-type semiconductor and Q is p-type semiconductor

    C)  P is semiconductor and Q is conductor

    D)  P is conductor and Q is semiconductor

    Correct Answer: D

    Solution :

    Resistance of conductors increases with rise in temperature while decreases in case of semiconductors. So, clearly P is conductor whereas Q is semiconductor.


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