Growing up and using UA-cam for stupid crap like Evolution of Dance (which is still a gem), I never thought that a UA-cam channel would make my college degree possible. Wow. Thank you sir. So brilliantly clear.
I have attended several lecs on this topic in some i just slept cuz they were sooooo boring and inaccurate cant tell u what good this has done to me can finally start pyqs and 12th ques😭thanks!!!
sometimes I feel like physics teachers on UA-cam become a little too relatable that we forget the actual concept we're trying to learn...of my 4 years of UA-cam learning, I had never found the perfect balance between fun and study....until now! this is the raam baan for physics🛐 thank you sirrr
Great video, at some point, moles jumping out of hot soil popped into my head and then i guess, they create so many and can't see, they keep falling back in but because the ground is so hot, despite the number of moles and holes, there is always a certain amount of moles on the surface because the soil is that hot and we got so many moles jumping out. No way I'm forgetting this now and it's really interesting and fundamental to computer science so that's nice.
Beautifully explained sir. I have already seen many videos in this series and they are all deserve top commendation. So this comment could be repeated for all of them.Thanks.
This series is supposed to be in Class 12 physics India Semiconductor series. It is supposed to be before the lecture minority charge carrier. That's why I said that.
What are the units in this video? what is the unit for generation? is it number of holes? also rate of generation and... It gives a perspective what the f(t)=con *n_i^2 means....
generation is the rate at which thermal energy excites electron to conduction zone/band,when that is equal to the recombination rate(the rate at which electrons release/emmit their energy back and settle into the bonding delocalized orbital) that gives you the equilibrium equation, using that we can get the number of electrons that are not changing with time,the generation and recombination rates then are obviously frequencies numbers per second which if you want probably can use hertz idk any other notation for frequency where as the end result obviously is the number of conductive electrons
Electrostatics and circuits belong to one science not two. For a unified approach to learning Current and the process of conduction watch these two videos i. ua-cam.com/video/REsWdd76qxc/v-deo.html and ii. ua-cam.com/video/8BQM_xw2Rfo/v-deo.html Also, in the textbooks referred in the last frame of video i you will find descriptions of the operation of resistors, capacitors and inductors using this approach which makes it easier to understand. There are also chapters in the textbook references which explain the operation of diodes and transistors using the unified approach and includes the energy band theory to explain the operation of p-n junctions.
Kindly, the original atoms yes they are 10 to power 22. But only 10 to power 10 atoms for example in Si contribute to the conduction as the rest are sitting at the top of the parabolic curve of the conduction band. Therefore, every atom still shares (1 to 4) valence electrons with other atoms not every 10 to power 22 contribute with only one e and h. It's non-sense. Semiconductors are called so because of their conductivity comparing to metals. The conductivity is due to their bandgap. While metals don't have bandgap since the conduction and valance bands are overlapped. Thanks
Growing up and using UA-cam for stupid crap like Evolution of Dance (which is still a gem), I never thought that a UA-cam channel would make my college degree possible.
Wow. Thank you sir. So brilliantly clear.
I have attended several lecs on this topic in some i just slept cuz they were sooooo boring and inaccurate cant tell u what good this has done to me can finally start pyqs and 12th ques😭thanks!!!
The last segment of explanation was astonishing... This is how we can understand the real mystery of science... GOOD JOB...
This is called a teaching standard which many youtuber lack while teaching they just jump to equation as if they discovered it😂.I love you ❤❤
Next level of teaching. Salute sir for all your efforts to help students.
sometimes I feel like physics teachers on UA-cam become a little too relatable that we forget the actual concept we're trying to learn...of my 4 years of UA-cam learning, I had never found the perfect balance between fun and study....until now! this is the raam baan for physics🛐 thank you sirrr
Finally a clear explanation! Thanks a lot :)
very helpful thanks Mahesh
beautiful lecture !!!! you saved me hours of research !! wish Khanacademy where in germany too :(
hello i want to ask something how can i contact you
Wow!!! Thats amazing u teach in a very easy manner it's like I'm enjoying learning physics ..😇😇😇
Thank you so much! My professor is shit but thanks to this I finally managed to understand so many things
Your explanation is awesome and we are able to understand the concept well
I wished I knew this channel when I was at year 2 electrical engineering ....
this description for semiconductor was one the bests.
Thank you for such an amazing video👍🙏
Great video, at some point, moles jumping out of hot soil popped into my head and then i guess, they create so many and can't see, they keep falling back in but because the ground is so hot, despite the number of moles and holes, there is always a certain amount of moles on the surface because the soil is that hot and we got so many moles jumping out. No way I'm forgetting this now and it's really interesting and fundamental to computer science so that's nice.
Hope we have u in andhrapradesh ....kurnool ...aakash college ......u r brilliant ...amazing
Standing ovation
This lecture is unavailable in the app. Please fix this problem.
Such an amazing video!! Very very interesting....tysm!!
omg ..ur explanations are ewally amazing
You made it very easy to understand
Thank you so much sir😀🙏
That was a really good explanation.......thank you for sharing
You made this so easy ❤️
very nice
hi, probably heard the same question again, what software do you use to present such beatiful classes?
Very good....concept and speach both are awesome
Beautifully explained sir. I have already seen many videos in this series and they are all deserve top commendation. So this comment could be repeated for all of them.Thanks.
You made an excellent video but it was not included on the Semiconductor series at Khan Academy.
What do you mean? You can find all these videos on Khan Academy website :)
This series is supposed to be in Class 12 physics India Semiconductor series. It is supposed to be before the lecture minority charge carrier. That's why I said that.
@@ismatararoksana8088 Ah, thanks a lot for pointing that out. I am going to do immediately :)
Thanks Khan Academy. Your videos are great.
Plzz.....post videos on the concept Nuclei
What are the units in this video? what is the unit for generation? is it number of holes? also rate of generation and... It gives a perspective what the f(t)=con *n_i^2 means....
generation is the rate at which thermal energy excites electron to conduction zone/band,when that is equal to the recombination rate(the rate at which electrons release/emmit their energy back and settle into the bonding delocalized orbital)
that gives you the equilibrium equation, using that we can get the number of electrons that are not changing with time,the generation and recombination rates then are obviously frequencies
numbers per second which if you want probably can use hertz idk any other notation for frequency
where as the end result obviously is the number of conductive electrons
and holes ig,its still pretty weird I don't like the concept of holes, make you think more
Electrostatics and circuits belong to one science not two. For a unified approach to learning Current and the process of conduction watch these two videos i. ua-cam.com/video/REsWdd76qxc/v-deo.html and
ii. ua-cam.com/video/8BQM_xw2Rfo/v-deo.html
Also, in the textbooks referred in the last frame of video i you will find descriptions of the operation of resistors, capacitors and inductors using this approach which makes it easier to understand.
There are also chapters in the textbook references which explain the operation of diodes and transistors using the unified approach and includes the energy band theory to explain the operation of p-n junctions.
Now, _this_ is physics
For conduction charge carriers need to be in conduction band right then why not the holes are in conduction band and electrons are.
This is amazing
Thanks
But this say that holes is in greater quantity why this happen some says holes are heavily and highly doped region plz clear this point
How light energy is produced during whole process...
On y axis represent Energy on X axis
Thanks sir as 😄😄😄
Who 👻👻 likes
Kindly, the original atoms yes they are 10 to power 22. But only 10 to power 10 atoms for example in Si contribute to the conduction as the rest are sitting at the top of the parabolic curve of the conduction band. Therefore, every atom still shares (1 to 4) valence electrons with other atoms not every 10 to power 22 contribute with only one e and h. It's non-sense. Semiconductors are called so because of their conductivity comparing to metals. The conductivity is due to their bandgap. While metals don't have bandgap since the conduction and valance bands are overlapped.
Thanks
🙏🙏
But p type has holes in valence band not conduction band how does electric field cause current
Better than physics wallah
how 10*22 atom contributes 10*10 electrons why not 10*22 electrons?
Omg love it! thank you so much ! i can finally understandt it 🫠
How that emoji you do puta 😮
stop copying sal, its irritating
🤦♀️
Fake accent lmfao
its a very good way of making learning easier
@@breakcoregirlxd no it isn't lmao
No one cares bro. He is teaching well and thats what matters