Home
Class 12
PHYSICS
The valence band and conduction band of ...

The valence band and conduction band of a solid overlap at low temperature, the solid may be

A

a metal

B

a semiconductor

C

an insulator

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
a

In metals, the valence band and conduction band may overlap at low temperature.
Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTOR ELECTRONICS

    FULL MARKS|Exercise Additional Question (Short Answer Questions)|22 Videos
  • SEMICONDUCTOR ELECTRONICS

    FULL MARKS|Exercise Additional Question (Long Answer Questions.)|3 Videos
  • SEMICONDUCTOR ELECTRONICS

    FULL MARKS|Exercise Textual Evaluation Solved (Numerical Problems)|5 Videos
  • SAMPLE PAPER-8

    FULL MARKS|Exercise PART-IV|10 Videos

Similar Questions

Explore conceptually related problems

Define conduction band.

Indium antimonide has a band gap of 0.23eV between the valence and the conduction band.Find the temperature at which kT equal the band gap.

Energy gap between valence band and conduction band is called as the ……….

Given the Schematic representation of valence band, conduction band , and forbidden energy gap. And draw energy and structure of (a) Insulators (b) Semiconductors (c) Metals?

Which metals are not solid at room temperature?

Let (Delta)E denote the energy gap between the valence band and the conduction band.The population of conduction electrons (and of the holes)is roughly proportional to e^(-Delta E//2kT). Find the ratio of the concentration of conduction electrons in diamond to that in silicon at room tempareture 300K. (Delta E) for silicon is 1.1 ev and for diamond is 6.0eV.How many conduction electrons are likely to be in one cubic meter of diamond ?

All metals are solids are room temperature .

If heat a supplied to a solid, its temperature