Electronics and Communication Engineering (ECE) Exam > Electronics and Communication Engineering (ECE) Questions > Select the correct statement about a semicond...
Start Learning for Free
Select the correct statement about a semiconductor
- a)Electron mobility is less than hole mobility
- b)Electron mobility is more than hole mobility
- c)Electron and hole mobilities are equal
- d)Electrons accelerate in the direction of the applied electric field
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
Select the correct statement about a semiconductora)Electron mobility ...
Where m: mass
Observations:
1) The effective mass of the hole is greater than that of the electron.
2) The relaxation times are often of the same order of magnitude for electrons and holes and therefore, they do not make too much difference.
As the effective mass is less for electron it moves faster than that of the hole.
Important Point
Drift velocity
Important Point
Drift velocity
vd = μ × E
μ: Mobility of charge carrier
Drift velocities of Hole and Electron
Vn = μn × E
Vp = μp × E
Free Test
FREE
| Start Free Test |
Community Answer
Select the correct statement about a semiconductora)Electron mobility ...
Explanation:
Electron mobility is more than hole mobility
Semiconductors are materials that have properties between conductors and insulators. In semiconductors, the mobility of electrons is typically higher than the mobility of holes. This is due to the difference in their charge and mass.
Electron mobility:
- Electrons are the charge carriers in n-type semiconductors.
- Electrons have a negative charge and are lighter than holes.
- Due to their lighter mass, electrons can move more freely through the crystal lattice, resulting in higher mobility compared to holes.
Hole mobility:
- Holes are the charge carriers in p-type semiconductors.
- Holes are essentially the absence of an electron in a filled energy state.
- Holes have a positive charge and are heavier than electrons.
- Due to their heavier mass, holes do not move as easily through the crystal lattice, leading to lower mobility compared to electrons.
Conclusion:
- In semiconductors, electron mobility is typically more than hole mobility due to the difference in their charge and mass. This difference in mobility plays a crucial role in the conductivity and performance of semiconductor devices.
Electron mobility is more than hole mobility
Semiconductors are materials that have properties between conductors and insulators. In semiconductors, the mobility of electrons is typically higher than the mobility of holes. This is due to the difference in their charge and mass.
Electron mobility:
- Electrons are the charge carriers in n-type semiconductors.
- Electrons have a negative charge and are lighter than holes.
- Due to their lighter mass, electrons can move more freely through the crystal lattice, resulting in higher mobility compared to holes.
Hole mobility:
- Holes are the charge carriers in p-type semiconductors.
- Holes are essentially the absence of an electron in a filled energy state.
- Holes have a positive charge and are heavier than electrons.
- Due to their heavier mass, holes do not move as easily through the crystal lattice, leading to lower mobility compared to electrons.
Conclusion:
- In semiconductors, electron mobility is typically more than hole mobility due to the difference in their charge and mass. This difference in mobility plays a crucial role in the conductivity and performance of semiconductor devices.
Attention Electronics and Communication Engineering (ECE) Students!
To make sure you are not studying endlessly, EduRev has designed Electronics and Communication Engineering (ECE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Electronics and Communication Engineering (ECE).
|
Explore Courses for Electronics and Communication Engineering (ECE) exam
|
|
Similar Electronics and Communication Engineering (ECE) Doubts
Top Courses for Electronics and Communication Engineering (ECE)View all
Select the correct statement about a semiconductora)Electron mobility is less than hole mobilityb)Electron mobility is more than hole mobilityc)Electron and hole mobilities are equald)Electrons accelerate in the direction of the applied electric fieldCorrect answer is option 'B'. Can you explain this answer?
Question Description
Select the correct statement about a semiconductora)Electron mobility is less than hole mobilityb)Electron mobility is more than hole mobilityc)Electron and hole mobilities are equald)Electrons accelerate in the direction of the applied electric fieldCorrect answer is option 'B'. Can you explain this answer? for Electronics and Communication Engineering (ECE) 2024 is part of Electronics and Communication Engineering (ECE) preparation. The Question and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus. Information about Select the correct statement about a semiconductora)Electron mobility is less than hole mobilityb)Electron mobility is more than hole mobilityc)Electron and hole mobilities are equald)Electrons accelerate in the direction of the applied electric fieldCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Select the correct statement about a semiconductora)Electron mobility is less than hole mobilityb)Electron mobility is more than hole mobilityc)Electron and hole mobilities are equald)Electrons accelerate in the direction of the applied electric fieldCorrect answer is option 'B'. Can you explain this answer?.
Select the correct statement about a semiconductora)Electron mobility is less than hole mobilityb)Electron mobility is more than hole mobilityc)Electron and hole mobilities are equald)Electrons accelerate in the direction of the applied electric fieldCorrect answer is option 'B'. Can you explain this answer? for Electronics and Communication Engineering (ECE) 2024 is part of Electronics and Communication Engineering (ECE) preparation. The Question and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus. Information about Select the correct statement about a semiconductora)Electron mobility is less than hole mobilityb)Electron mobility is more than hole mobilityc)Electron and hole mobilities are equald)Electrons accelerate in the direction of the applied electric fieldCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Select the correct statement about a semiconductora)Electron mobility is less than hole mobilityb)Electron mobility is more than hole mobilityc)Electron and hole mobilities are equald)Electrons accelerate in the direction of the applied electric fieldCorrect answer is option 'B'. Can you explain this answer?.
Solutions for Select the correct statement about a semiconductora)Electron mobility is less than hole mobilityb)Electron mobility is more than hole mobilityc)Electron and hole mobilities are equald)Electrons accelerate in the direction of the applied electric fieldCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electronics and Communication Engineering (ECE).
Download more important topics, notes, lectures and mock test series for Electronics and Communication Engineering (ECE) Exam by signing up for free.
Here you can find the meaning of Select the correct statement about a semiconductora)Electron mobility is less than hole mobilityb)Electron mobility is more than hole mobilityc)Electron and hole mobilities are equald)Electrons accelerate in the direction of the applied electric fieldCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Select the correct statement about a semiconductora)Electron mobility is less than hole mobilityb)Electron mobility is more than hole mobilityc)Electron and hole mobilities are equald)Electrons accelerate in the direction of the applied electric fieldCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for Select the correct statement about a semiconductora)Electron mobility is less than hole mobilityb)Electron mobility is more than hole mobilityc)Electron and hole mobilities are equald)Electrons accelerate in the direction of the applied electric fieldCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of Select the correct statement about a semiconductora)Electron mobility is less than hole mobilityb)Electron mobility is more than hole mobilityc)Electron and hole mobilities are equald)Electrons accelerate in the direction of the applied electric fieldCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Select the correct statement about a semiconductora)Electron mobility is less than hole mobilityb)Electron mobility is more than hole mobilityc)Electron and hole mobilities are equald)Electrons accelerate in the direction of the applied electric fieldCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Electronics and Communication Engineering (ECE) tests.
|
|
Explore Courses for Electronics and Communication Engineering (ECE) exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
x
![]()
For Your Perfect Score in Electronics and Communication Engineering (ECE)
The Best you need at One Place
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup