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NEET 2020
Exam
NEET
Year
2020
Subject
Physics
Chapter
Semiconductors

NEET 2020 · Physics · Semiconductors

The solids which have the negative temperature coefficient of...

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

Options

  1. Ainsulators only
  2. Bsemiconductors only
  3. Cinsulators and semiconductors
  4. Dmetals

Correct answer

C. insulators and semiconductors

Step-by-step solution

The solids which have the negative temperature coefficient of resistance means the resistance of these solid will decrease when temperature increases due to more no of free electron at higher temperature. It happens in both insulators and semiconductors.
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