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Gopal001 Das
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Asked: 2025-03-07T09:47:16+00:00 In:

Temperature dependence of resistivity p(T) of semiconductors, insulators and metals is significantly based on the following factors :

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Poll Results

33.33%(a) Number of change carriers can change with temperature T ( 1 voter )
66.67%(b) time interval between two successive collisions can depend on T ( 2 voters )
0%(c) length of material can be a function of T
0%(d) mass of carriers is a function of T
Based On 3 Votes

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The temperature dependence of resistivity ρ(T) is influenced by:
(a) Number of charge carriers can change with temperature
T → In semiconductors and insulators, the number of free charge carriers increases with temperature, significantly affecting resistivity.
(b) Time interval between two successive collisions can depend on
T → In metals, increased temperature leads to more frequent collisions, increasing resistivity.
Thus, the correct answers are (a) and (b).
Class 12th Science Physics NCERT MCQ Questions
NCERT Books MCQ Questions Session 2024-2025.

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    1 Answer

    1. The temperature dependence of resistivity ρ(T) in semiconductors, insulators and metals is primarily influenced by:
      (a) Number of charge carriers can change with temperature T (especially in semiconductors and insulators).
      (b) Time interval between successive collisions depends on T (affecting electron scattering).
      Thus, the correct answers are (a) and (b).

      For more visit here:
      https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-3/

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