The impurity added to a semiconductor is measured in parts per:
AThousand
BBillion
CMillion
DHundred
Answer & Solution
Correct answer: C. Million
1. Only a tiny quantity of impurity is needed.
2. Even that raises the conductivity manifold.
3. The amount is a few parts per million.
_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: