JEE Exam > JEE Questions > If p-n junction is unbiased then:a)Current is...
Start Learning for Free
If p-n junction is unbiased then:
- a)Current is zero, because drifting of charge is same from both sides
- b)Current is zero, because there is no movement of charge
- c)Current is not zero
- d)None of these
Correct answer is option 'A'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
If p-n junction is unbiased then:a)Current is zero, because drifting o...
If p-n junction is unbiased then the current is zero because the drifting of charge is the same from both sides. As the concentration of electrons is less in the P-side compared to the n - side the electrons will diffusion n to the P-side of the junction.
In the case of holes, it occurs in vice versa for holes, this diffusion of electrons from n to P constitutes diffusion current from P to n. As a consequence of this diffusion there creates a region that is depleted from charges known as the depletion region.
The barrier potential set up across the junction produces a current from n to P which is known as drift current which is in opposite direction to the diffusion current.
In the case of holes, it occurs in vice versa for holes, this diffusion of electrons from n to P constitutes diffusion current from P to n. As a consequence of this diffusion there creates a region that is depleted from charges known as the depletion region.
The barrier potential set up across the junction produces a current from n to P which is known as drift current which is in opposite direction to the diffusion current.
Free Test
FREE
| Start Free Test |
Community Answer
If p-n junction is unbiased then:a)Current is zero, because drifting o...
Explanation:
Current is zero, because drifting of charge is same from both sides
- In an unbiased p-n junction, the depletion region is formed by the diffusion of majority carriers from the p side to the n side and vice versa.
- As a result, the electric field in the depletion region prevents further movement of majority carriers across the junction.
- The drift current due to the movement of minority carriers is negligible in an unbiased p-n junction.
- Since the drifting of charge is equal from both sides (p to n and n to p), the net current flowing through the junction is zero.
Therefore, the correct answer is option 'A' - Current is zero, because drifting of charge is same from both sides.
Current is zero, because drifting of charge is same from both sides
- In an unbiased p-n junction, the depletion region is formed by the diffusion of majority carriers from the p side to the n side and vice versa.
- As a result, the electric field in the depletion region prevents further movement of majority carriers across the junction.
- The drift current due to the movement of minority carriers is negligible in an unbiased p-n junction.
- Since the drifting of charge is equal from both sides (p to n and n to p), the net current flowing through the junction is zero.
Therefore, the correct answer is option 'A' - Current is zero, because drifting of charge is same from both sides.
Attention JEE Students!
To make sure you are not studying endlessly, EduRev has designed JEE study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in JEE.
|
Explore Courses for JEE exam
|
|
Similar JEE Doubts
Top Courses for JEEView all
If p-n junction is unbiased then:a)Current is zero, because drifting of charge is same from both sidesb)Current is zero, because there is no movement of chargec)Current is not zerod)None of theseCorrect answer is option 'A'. Can you explain this answer?
Question Description
If p-n junction is unbiased then:a)Current is zero, because drifting of charge is same from both sidesb)Current is zero, because there is no movement of chargec)Current is not zerod)None of theseCorrect answer is option 'A'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about If p-n junction is unbiased then:a)Current is zero, because drifting of charge is same from both sidesb)Current is zero, because there is no movement of chargec)Current is not zerod)None of theseCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If p-n junction is unbiased then:a)Current is zero, because drifting of charge is same from both sidesb)Current is zero, because there is no movement of chargec)Current is not zerod)None of theseCorrect answer is option 'A'. Can you explain this answer?.
If p-n junction is unbiased then:a)Current is zero, because drifting of charge is same from both sidesb)Current is zero, because there is no movement of chargec)Current is not zerod)None of theseCorrect answer is option 'A'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about If p-n junction is unbiased then:a)Current is zero, because drifting of charge is same from both sidesb)Current is zero, because there is no movement of chargec)Current is not zerod)None of theseCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If p-n junction is unbiased then:a)Current is zero, because drifting of charge is same from both sidesb)Current is zero, because there is no movement of chargec)Current is not zerod)None of theseCorrect answer is option 'A'. Can you explain this answer?.
Solutions for If p-n junction is unbiased then:a)Current is zero, because drifting of charge is same from both sidesb)Current is zero, because there is no movement of chargec)Current is not zerod)None of theseCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE.
Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free.
Here you can find the meaning of If p-n junction is unbiased then:a)Current is zero, because drifting of charge is same from both sidesb)Current is zero, because there is no movement of chargec)Current is not zerod)None of theseCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
If p-n junction is unbiased then:a)Current is zero, because drifting of charge is same from both sidesb)Current is zero, because there is no movement of chargec)Current is not zerod)None of theseCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for If p-n junction is unbiased then:a)Current is zero, because drifting of charge is same from both sidesb)Current is zero, because there is no movement of chargec)Current is not zerod)None of theseCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of If p-n junction is unbiased then:a)Current is zero, because drifting of charge is same from both sidesb)Current is zero, because there is no movement of chargec)Current is not zerod)None of theseCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice If p-n junction is unbiased then:a)Current is zero, because drifting of charge is same from both sidesb)Current is zero, because there is no movement of chargec)Current is not zerod)None of theseCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice JEE tests.
|
|
Explore Courses for JEE 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
|
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