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.
The solids which have the negative temperature coefficient of resistance are:
NEET UG 2020 — Physics Modern Physics
2020mcqeasy
The solids which have the negative temperature coefficient of resistance are:
Official previous-year question
Held on 30 Apr 2020 · Verified 9 Jul 2026.
Options
- A
insulators only
- B
semiconductors only
- C
insulators and semiconductors
- D
metals
Did you get this right?
Sign in to track your attempts and accuracy.
Your note
Sign in to keep a private note on this question. Nothing you write is ever public.
NEET UG Modern Physics in other years
More NEET UG Modern Physics questions
A photon and an electron (mass $m$ ) have the same energy $E$. The ratio ( $\lambda_{\text {photon }} / \lambda_{\text {electron }}$ ) of their de Broglie wavelengths is: (c is the speed of light)
2025medium
The output $(\mathrm{Y})$ of the given logic implementation is similar to the output of an/a _____ gate. 
2025medium
The maximum kinetic energy of photoelectrons from a surface with work function φ = 2 eV when light of λ = 4000 Å falls on it is (hc = 12400 eV·Å):
2025easy
A full wave rectifier circuit with diodes $\left(D_1\right)$ and $\left(D_2\right)$ is shown in the figure. If input supply voltage $V_{\text {in }}=220 \sin (100 \pi t)$ volt, then at $t=15 \mathrm{msec}$ 
2025medium
A particle of mass $m$ is moving around the origin with a constant force $F$ pulling it towards the origin. If Bohr model is used to describe its motion, the radius $r$ of the $n^{\text {th }}$ orbit and the particle's speed $v$ in the orbit depend on $n$ as
2025medium
Other Physics topics for NEET UG
Keep practicing Modern Physics
Work through every NEET UG Modern Physics PYQ, year by year.