Physics Exam > Physics Questions > What is the maximum electric field when Vbi =...
Start Learning for Free
What is the maximum electric field when Vbi = 2V, VR = 5V and width of the semiconductor is 7cm?
- a)-100V/m
- b)100V/m
- c)200V/m
- d)-200V/m
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
What is the maximum electric field when Vbi = 2V, VR = 5V and width of...
Emax = -2(Vbi + VR) / W
= -2(2 + 5) / (7 * 10-2)
= -200V/m.
= -2(2 + 5) / (7 * 10-2)
= -200V/m.
Free Test
FREE
| Start Free Test |
Community Answer
What is the maximum electric field when Vbi = 2V, VR = 5V and width of...
To solve this problem, we need to understand the relationship between electric field, potential difference, and width of the semiconductor.
1. Equation for electric field:
The electric field (E) is given by the equation E = V/d, where V is the potential difference and d is the width of the semiconductor.
2. Given values:
Vbi = 2V (built-in potential)
VR = 5V (applied potential)
Width of the semiconductor = 7cm
3. Calculation:
a) Electric field due to built-in potential:
Using the equation E = V/d, we can calculate the electric field due to the built-in potential: Ebi = Vbi/d
Ebi = 2V/7cm
b) Electric field due to applied potential:
Using the equation E = V/d, we can calculate the electric field due to the applied potential: ER = VR/d
ER = 5V/7cm
c) Total electric field:
The total electric field is the sum of the electric fields due to the built-in potential and the applied potential: Etotal = Ebi + ER
Etotal = Ebi + ER
= 2V/7cm + 5V/7cm
= (2V + 5V)/7cm
= 7V/7cm
= 1V/cm
d) Converting to SI units:
The question asks for the maximum electric field, so we need to convert 1V/cm to SI units (V/m).
1V/cm = 100V/m
Therefore, the maximum electric field is 100V/m, which corresponds to option D.
1. Equation for electric field:
The electric field (E) is given by the equation E = V/d, where V is the potential difference and d is the width of the semiconductor.
2. Given values:
Vbi = 2V (built-in potential)
VR = 5V (applied potential)
Width of the semiconductor = 7cm
3. Calculation:
a) Electric field due to built-in potential:
Using the equation E = V/d, we can calculate the electric field due to the built-in potential: Ebi = Vbi/d
Ebi = 2V/7cm
b) Electric field due to applied potential:
Using the equation E = V/d, we can calculate the electric field due to the applied potential: ER = VR/d
ER = 5V/7cm
c) Total electric field:
The total electric field is the sum of the electric fields due to the built-in potential and the applied potential: Etotal = Ebi + ER
Etotal = Ebi + ER
= 2V/7cm + 5V/7cm
= (2V + 5V)/7cm
= 7V/7cm
= 1V/cm
d) Converting to SI units:
The question asks for the maximum electric field, so we need to convert 1V/cm to SI units (V/m).
1V/cm = 100V/m
Therefore, the maximum electric field is 100V/m, which corresponds to option D.
|
Explore Courses for Physics exam
|
|
Similar Physics Doubts
What is the maximum electric field when Vbi = 2V, VR = 5V and width of the semiconductor is 7cm?a)-100V/mb)100V/mc)200V/md)-200V/mCorrect answer is option 'D'. Can you explain this answer?
Question Description
What is the maximum electric field when Vbi = 2V, VR = 5V and width of the semiconductor is 7cm?a)-100V/mb)100V/mc)200V/md)-200V/mCorrect answer is option 'D'. Can you explain this answer? for Physics 2025 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about What is the maximum electric field when Vbi = 2V, VR = 5V and width of the semiconductor is 7cm?a)-100V/mb)100V/mc)200V/md)-200V/mCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Physics 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the maximum electric field when Vbi = 2V, VR = 5V and width of the semiconductor is 7cm?a)-100V/mb)100V/mc)200V/md)-200V/mCorrect answer is option 'D'. Can you explain this answer?.
What is the maximum electric field when Vbi = 2V, VR = 5V and width of the semiconductor is 7cm?a)-100V/mb)100V/mc)200V/md)-200V/mCorrect answer is option 'D'. Can you explain this answer? for Physics 2025 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about What is the maximum electric field when Vbi = 2V, VR = 5V and width of the semiconductor is 7cm?a)-100V/mb)100V/mc)200V/md)-200V/mCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Physics 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the maximum electric field when Vbi = 2V, VR = 5V and width of the semiconductor is 7cm?a)-100V/mb)100V/mc)200V/md)-200V/mCorrect answer is option 'D'. Can you explain this answer?.
Solutions for What is the maximum electric field when Vbi = 2V, VR = 5V and width of the semiconductor is 7cm?a)-100V/mb)100V/mc)200V/md)-200V/mCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Physics.
Download more important topics, notes, lectures and mock test series for Physics Exam by signing up for free.
Here you can find the meaning of What is the maximum electric field when Vbi = 2V, VR = 5V and width of the semiconductor is 7cm?a)-100V/mb)100V/mc)200V/md)-200V/mCorrect answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
What is the maximum electric field when Vbi = 2V, VR = 5V and width of the semiconductor is 7cm?a)-100V/mb)100V/mc)200V/md)-200V/mCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for What is the maximum electric field when Vbi = 2V, VR = 5V and width of the semiconductor is 7cm?a)-100V/mb)100V/mc)200V/md)-200V/mCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of What is the maximum electric field when Vbi = 2V, VR = 5V and width of the semiconductor is 7cm?a)-100V/mb)100V/mc)200V/md)-200V/mCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice What is the maximum electric field when Vbi = 2V, VR = 5V and width of the semiconductor is 7cm?a)-100V/mb)100V/mc)200V/md)-200V/mCorrect answer is option 'D'. Can you explain this answer? tests, examples and also practice Physics tests.
|
|
Explore Courses for Physics exam
|
|
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