If a gap leaves the valence electrons all bound, the material is an:
AConductor
BAmplifier
COscillator
DInsulator
Answer & Solution
Correct answer: D. Insulator
1. No free electrons are available in the conduction band.
2. So no current can be carried.
3. The material is an insulator.
_Source: NCERT Class 12 Physics Part II, Chapter 14, Semiconductor Electronics._
Related questions
Indium, boron and aluminium are dopants that are:Arsenic, antimony and phosphorus are dopants that are:How many types of dopant are used with silicon or germanium?Silicon and germanium are described as elements that are:For a dopant not to distort the lattice, its atoms must be of nearly the same:A dopant must be chosen so that it does not distort the:Atoms of the added impurity go by which name:The deliberate addition of an impurity is called: