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PN breakdown and avalanche | Class 12 (India) | Physics | Khan Academy 

Khan Academy India - English
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In this video, we will explore what 'breakdown' of a PN diode is. We will see why, usually, it's not advisable to have a large reverse bias voltage across our PN junction diode!
Learn the next topic here --www.khanacademy.org/science/i...
Class 12 Semiconductors: We cannot imagine our life without computers today. But what makes a computer tick? What's making this technology grow at such an exponential rate? It's all due to semiconductors. As unbelievable as that might sound, altering the properties of semiconductors allows us to build these computers. In this topic, we will explore the world of semiconductors. It's a journey from what semiconductors are all the way to creating building blocks of these computers.
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Created by Mahesh Shenoy

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2 апр 2018

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Комментарии : 62   
@aswithasai4015
@aswithasai4015 2 года назад
Thanks is not enough for such a great and clear explanation . 🙏🙏🙏
@s.3421
@s.3421 2 года назад
Guys I bet uh, u won't get a better video than this in the whole of the utube!! I wasted a lot of time, searching for a video where I could understand p n junction clearly... And then I found these videos where I understood it finally!!! Tqsm🙏🏻🙏🏻👏🏻👌🏻🥳🥳
@ayushgujarathi9651
@ayushgujarathi9651 Месяц назад
Best explanation for this topic on whole internet❤
@carolinerozario9702
@carolinerozario9702 2 года назад
I’m studying for neet from your videos… though I go to coaching. your explanation was amazing sir! thanks a lot.
@JawaharH-mb5mo
@JawaharH-mb5mo 8 месяцев назад
Exactly Same
@prakhargupta1409
@prakhargupta1409 5 лет назад
Amazing man.. Simply amazing.
@Hino_55
@Hino_55 4 года назад
Excellent explanation! Thankyou Sir Mahesh!
@dhurbarajpuree2992
@dhurbarajpuree2992 2 года назад
Simply, perfection 👌👌
@fanruihu330
@fanruihu330 4 года назад
Excellent! Thank you so much!
@rakesharora7714
@rakesharora7714 6 месяцев назад
You are great. Serving to society.
@pamudusachintha5869
@pamudusachintha5869 4 месяца назад
You are amazing ...I watched all these videos
@Best_hopes
@Best_hopes 2 года назад
Wow...explanation is just wow💯
@260eeeprasuna2
@260eeeprasuna2 3 года назад
Splendid...
@sivarishi9639
@sivarishi9639 5 лет назад
Good work sir.
@skywalkerlive1104
@skywalkerlive1104 2 года назад
thanks for the great explanation man :)
@surajbhandari2071
@surajbhandari2071 Год назад
Really good explanation and animations.
@prachisharma1545
@prachisharma1545 5 дней назад
Thanks❤❤best lecture ever❤
@swethamurali3491
@swethamurali3491 2 года назад
Thanks so much! Your videos helped me ace my viva at school!
@farahmahmoud-fo5sb
@farahmahmoud-fo5sb 2 дня назад
i hope you make videos about laser,💫 literally, you're the best physics teacher I have ever seen.🌹
@airace895
@airace895 5 лет назад
Thank you sir.
@danielszewczyk4955
@danielszewczyk4955 3 года назад
Love the video
@dikshanegi222
@dikshanegi222 7 месяцев назад
Thank you soo much❤
@rudinno
@rudinno 7 месяцев назад
this guy what a legend
@charistrendy
@charistrendy Год назад
Thank you so much
@shizerrahman7059
@shizerrahman7059 3 года назад
Please explain Avalanche and Zener break down because they have different mechanisms
@nehapal6888
@nehapal6888 3 года назад
Thanks sir
@tiredcat6653
@tiredcat6653 5 лет назад
wow, thanks
@najinkunnath6009
@najinkunnath6009 Месяц назад
🔥🔥🔥
@kingusmanniazi3377
@kingusmanniazi3377 Год назад
I love Mahesh teachingggg
@rnavinkumar6110
@rnavinkumar6110 3 года назад
I love you sir
@brighttips8203
@brighttips8203 Год назад
thnks sir
@vaibhavmishra5962
@vaibhavmishra5962 5 лет назад
👍👍
@shashiyadav3692
@shashiyadav3692 4 года назад
Photodiode and led appications video sir!!!
@lyrical_Ricko
@lyrical_Ricko Год назад
💥💥
@anandapatmanabhansu
@anandapatmanabhansu 9 месяцев назад
Teacher, can the avalanche effect also takes place for high voltage in forward bias
@muzzrayyan1290
@muzzrayyan1290 4 года назад
@Khan Academy India -English at 5:36 if this collision effect can happen why does it not happen normally when the semi conductor is in equilibrium??
@roopas8462
@roopas8462 4 года назад
because at equilibrium electron does not have sufficient energy to knock of bonded electron into conduction band
@satyasantosh8071
@satyasantosh8071 2 года назад
When the applied voltage is high the free electrons will get more energy hence they can knock other electrons out by coulombic repulsion’s…, hope you get your answer
@farveenmahmud6674
@farveenmahmud6674 4 года назад
When the graphs extend upwards is it going towards infinity?
@manavprakashan6149
@manavprakashan6149 3 года назад
Actually yes but no😁
@farveenmahmud6674
@farveenmahmud6674 3 года назад
@@manavprakashan6149 so it looks like it's going to infinity but it's not?
@manavprakashan6149
@manavprakashan6149 3 года назад
@@farveenmahmud6674 the diode will just be destroyed by such a large current
@benkeates5396
@benkeates5396 Год назад
@@farveenmahmud6674 eventually destroyed by temperature
@prishiakanksha3771
@prishiakanksha3771 5 лет назад
So after exceeding breakdown voltage, will the diode always be destroyed?
@sairam7262
@sairam7262 5 лет назад
It will get destroyed above a particular value. It is usually mentioned by the manufacturers
@benkeates5396
@benkeates5396 Год назад
Destruction usually occurs from the heat caused by the generation
@hishamsayed474
@hishamsayed474 5 лет назад
i wish if there was some problems thats what we get test on here in the college tho
@phenomenalphysics3548
@phenomenalphysics3548 3 года назад
what language is this?
@rishabhranjan9168
@rishabhranjan9168 3 года назад
@@phenomenalphysics3548 👽👾
@shewtyhaque3594
@shewtyhaque3594 3 года назад
We are saying current increase when it break down.But current increase,so why is the graph in negative? Shouldn't it be in the positive line as it is increasing?
@manupasamarawickrama1568
@manupasamarawickrama1568 3 года назад
Its increasing to the opposite sude
@shewtyhaque3594
@shewtyhaque3594 3 года назад
But why? Current and voltage is creasing and so why does the graph in negative line. Doesn't it mean decreasing? I am a new student in semiconductor.if the question is peculiar please help me understand my fault
@FrozenBusChannel
@FrozenBusChannel 2 года назад
@@shewtyhaque3594 increasing in magnitude, but since it's in the reverse direction (compared to the "normal" conducting direction of the diode) the graph goes in the negative side
@satyasantosh8071
@satyasantosh8071 2 года назад
@shewty Haque the forward bias as voltage increases the current flows from p to n (right to left), but in the reverse bias current flows from n to p(left to right), the negative side of graph denotes the direction of reverse bias for better understanding of difference btw forward bias and reverse bias.
@girishdeshpande6843
@girishdeshpande6843 4 года назад
Why doesn’t the accelerating electron(glowing) just replace the electron of the valence band which it is hitting initially?
@roopas8462
@roopas8462 4 года назад
i think because of conservation of momentum
@ZAIRGAS_HAVEN
@ZAIRGAS_HAVEN 3 года назад
Because valence band electron is in first shell which is the outside last band of atom and so iniatially it hits valence bond electron
@anushanayak1589
@anushanayak1589 Год назад
maybe because it possesses enough energy to overcome the attractive forces of the nucleus and hence will not get restricted to moving in an orbit around the nucleus when it approaches an atom
@saiharanrajkumar3083
@saiharanrajkumar3083 3 года назад
My god, 0 dislikes, power of Khan Academy
@ZAIRGAS_HAVEN
@ZAIRGAS_HAVEN 3 года назад
Now idk who the bitch made a dislike😑
@power.marvel13
@power.marvel13 4 месяца назад
Isc students
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