NEET Exam > NEET Questions > Mobility of free electron in a current carry...
Start Learning for Free
Mobility of free electron in a current carrying conductor is proportional to
- a)Electric field
- b)Potential difference
- c)Relaxation time
- d)Resistivity
Correct answer is option 'C'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
Mobility of free electron in a current carrying conductor is proporti...
Relaxation Time and Mobility of Free Electrons in a Conductor
The mobility of free electrons in a current-carrying conductor is directly proportional to the relaxation time.
What is Relaxation Time?
Relaxation time is the average time taken by an electron between successive collisions in a conductor. It is a measure of how quickly an electron can move through a material before colliding with an obstacle, such as an impurity or lattice defect.
Relation between Relaxation Time and Mobility
The mobility of free electrons in a material is defined as the ratio of the drift velocity of electrons to the applied electric field. It is denoted by the symbol μ. Mathematically, μ = vd/E, where vd is the drift velocity and E is the electric field.
How Relaxation Time Affects Mobility
The relationship between relaxation time and mobility can be understood by the equation for drift velocity, vd = eEτ/m, where e is the charge of an electron, E is the electric field, τ is the relaxation time, and m is the mass of the electron. From this equation, it is clear that mobility is directly proportional to the relaxation time.
Therefore, the mobility of free electrons in a current-carrying conductor is proportional to the relaxation time. This means that a longer relaxation time allows electrons to move more freely through the material, resulting in a higher mobility.
The mobility of free electrons in a current-carrying conductor is directly proportional to the relaxation time.
What is Relaxation Time?
Relaxation time is the average time taken by an electron between successive collisions in a conductor. It is a measure of how quickly an electron can move through a material before colliding with an obstacle, such as an impurity or lattice defect.
Relation between Relaxation Time and Mobility
The mobility of free electrons in a material is defined as the ratio of the drift velocity of electrons to the applied electric field. It is denoted by the symbol μ. Mathematically, μ = vd/E, where vd is the drift velocity and E is the electric field.
How Relaxation Time Affects Mobility
The relationship between relaxation time and mobility can be understood by the equation for drift velocity, vd = eEτ/m, where e is the charge of an electron, E is the electric field, τ is the relaxation time, and m is the mass of the electron. From this equation, it is clear that mobility is directly proportional to the relaxation time.
Therefore, the mobility of free electrons in a current-carrying conductor is proportional to the relaxation time. This means that a longer relaxation time allows electrons to move more freely through the material, resulting in a higher mobility.
Free Test
FREE
| Start Free Test |
Community Answer
Mobility of free electron in a current carrying conductor is proporti...
Mobility of free electron depend upon relaxation time
Attention NEET Students!
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.
|
Explore Courses for NEET exam
|
|
Similar NEET Doubts
Top Courses for NEETView all
Mobility of free electron in a current carrying conductor is proportional toa)Electric fieldb)Potential differencec)Relaxation timed)ResistivityCorrect answer is option 'C'. Can you explain this answer?
Question Description
Mobility of free electron in a current carrying conductor is proportional toa)Electric fieldb)Potential differencec)Relaxation timed)ResistivityCorrect answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Mobility of free electron in a current carrying conductor is proportional toa)Electric fieldb)Potential differencec)Relaxation timed)ResistivityCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Mobility of free electron in a current carrying conductor is proportional toa)Electric fieldb)Potential differencec)Relaxation timed)ResistivityCorrect answer is option 'C'. Can you explain this answer?.
Mobility of free electron in a current carrying conductor is proportional toa)Electric fieldb)Potential differencec)Relaxation timed)ResistivityCorrect answer is option 'C'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Mobility of free electron in a current carrying conductor is proportional toa)Electric fieldb)Potential differencec)Relaxation timed)ResistivityCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Mobility of free electron in a current carrying conductor is proportional toa)Electric fieldb)Potential differencec)Relaxation timed)ResistivityCorrect answer is option 'C'. Can you explain this answer?.
Solutions for Mobility of free electron in a current carrying conductor is proportional toa)Electric fieldb)Potential differencec)Relaxation timed)ResistivityCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
Here you can find the meaning of Mobility of free electron in a current carrying conductor is proportional toa)Electric fieldb)Potential differencec)Relaxation timed)ResistivityCorrect answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Mobility of free electron in a current carrying conductor is proportional toa)Electric fieldb)Potential differencec)Relaxation timed)ResistivityCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Mobility of free electron in a current carrying conductor is proportional toa)Electric fieldb)Potential differencec)Relaxation timed)ResistivityCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Mobility of free electron in a current carrying conductor is proportional toa)Electric fieldb)Potential differencec)Relaxation timed)ResistivityCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Mobility of free electron in a current carrying conductor is proportional toa)Electric fieldb)Potential differencec)Relaxation timed)ResistivityCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice NEET tests.
|
|
Explore Courses for NEET 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.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup