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easyMCQNEET 2020 E12026Physics
1 mark

The solids which have the negative temperature coefficient of resistance are:

  1. A
    metals
  2. B
    insulators only
  3. C
    semiconductors only
  4. D
    insulators and semiconductors

Solution & Step-by-step Explanation

For insulators and semiconductors, resistance decreases as temperature increases because more charge carriers become available. Thus, they have a negative temperature coefficient of resistance. Metals have a positive coefficient.

Practice this question

Try it yourself before checking the explanation above.

The solids which have the negative temperature coefficient of resistance are:
A
metals
B
insulators only
C
semiconductors only
D
insulators and semiconductors

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