In an $n-$type semiconductor,which of the following statements is true?
- AHoles are majority carriers and pentavalent atoms are dopants.
- BElectrons are majority carriers and pentavalent atoms are dopants.
- CHoles are majority carriers and trivalent atoms are dopants.
- DElectrons are majority carriers and trivalent atoms are dopants.
Explore More
Similar Questions
How is electric conduction produced in an intrinsic semiconductor?
Easy
View SolutionWhat is an acceptor impurity? Write the names of such impurities.
Easy
View SolutionWhat is the number density of donor atoms which must be added to a pure germanium semiconductor to make an $n$-type semiconductor of conductivity $6.4 \ \Omega^{-1} \ cm^{-1}$? The mobility of electrons in $n$-type germanium is $4 \times 10^3 \ cm^2 \ V^{-1} \ s^{-1}$. Neglect the contribution of holes to conductivity.
Medium
View Solution$A$ pure silicon crystal at temperature $300 \text{ K}$ has electron and hole concentration $(n_i) = 10^{16} \text{ per m}^3$ each. If $10^{21}$ phosphorus atoms $(n_D)$ are added per cubic metre, what is the new hole concentration in the silicon crystal?
DifficultMHT CET 2026
View SolutionIn a semiconductor,the ratio of the number of electrons to the number of holes is $7/5$ and the ratio of their currents is $7/4$. What is the ratio of their drift velocities?
Easy
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