An intrinsic semiconductor is electrically ne | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) An extrinsic semiconductor,whether it is $N$-type or $P$-type,is formed by adding a small amount of impurity to a pure (intrinsic) semiconductor.A

Vedclass · Accepted Answer

Electrically neutral

Vedclass · Answer

(D) An extrinsic semiconductor,whether it is $N$-type or $P$-type,is formed by adding a small amount of impurity to a pure (intrinsic) semiconductor.Although the impurity atoms provide extra charge carriers (electrons or holes),the impurity atoms themselves are electrically neutral before they are added to the crystal lattice.When these atoms are incorporated into the lattice,the total number of protons equals the total number of electrons in the entire crystal structure.Therefore,the net charge of an extrinsic semiconductor remains zero,making it electrically neutral.

An intrinsic semiconductor is electrically neutral. An extrinsic semiconductor having a large number of current carriers would be:

Similar Questions

The conductivity of a pure semiconductor can be increased by

How is electric conduction produced in an intrinsic semiconductor?

For pure $Ge$,the intrinsic carrier density is $10^{19} \ m^{-3}$. If donor impurity is added with a density of $10^{23} \ m^{-3}$,what will be the hole density (in $m^{-3}$)?

The impurity atoms which are mixed with pure silicon to make a $P$-type semiconductor are those of:

For an intrinsic semiconductor,where $n_{h}$ and $n_{e}$ are the number of holes per unit volume and the number of electrons per unit volume respectively,which of the following relations holds true?

Vedclass Test Series

Exam Paper Generator

Online Exam Module