Choose only the false statement from the following:
- AIn conductors, the valence and conduction bands overlap.
- BSubstances with an energy gap of the order of $10 \ eV$ are insulators.
- CThe resistivity of a semiconductor increases with an increase in temperature.
- DThe conductivity of a semiconductor increases with an increase in temperature.
Explore More
Similar Questions
Choose the correct statement. In semiconductors,the valence band and conduction band
The electrical conductivities of $Ge$ and $Na$ are $\sigma_1$ and $\sigma_2$ respectively. If these materials are heated,then:
Medium
View SolutionClassify solid substances based on electrical conductivity and resistivity.
Medium
View Solution$A$ piece of copper and another of germanium are cooled from room temperature to $77 \ K$. The resistance of
The energy gap of silicon is $1.14 \ eV$. The maximum wavelength at which silicon will begin absorbing energy is.....$\mathring A$
Medium
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo