I can't explain, what a wonderful explain sir ! Salute sir
@pavankumarenugula5637
3 жыл бұрын
Suuuuper sir we need much more topics by you😍
@DeepakPhysics
5 жыл бұрын
Nice explaination sir Thank u so much
@Rose-b5o
2 ай бұрын
Nice Explanation..Thank you
@saikrishnaprasad5204
5 жыл бұрын
Nailed it bro, crystal clear explanation 👏👏👌👌
@impxlseofficial
3 жыл бұрын
Bro???🤣
@kprathamprabhu9626
3 жыл бұрын
Dude he is a professor at IISc!
@abhijitghosh6242
3 жыл бұрын
Bro???😡 Respect him...he is professor at IISc Bangalore
@amitkumar-sh2lk
3 жыл бұрын
@@abhijitghosh6242 but iisc prof want to call them by their name , so if he says bro then faculty will be happy
@himanshusalunkhe88
2 жыл бұрын
Bro Kya Bol rha
@Neeraj-is1jt
7 ай бұрын
At 19:35 how can a electron exist in a forbidden energy band gap (i.e. in a donor energy level)?
@subhrajyotighosh6714
2 жыл бұрын
Nice explanation... 👍...It's indeed a great help...
@indrashispowali-hf5tk
7 ай бұрын
amazing
@anishsinghrajput8981
4 жыл бұрын
sir plz clear the value of effective mass of holes ..and compare with effective v mass of electron..
@Neeraj-is1jt
8 ай бұрын
Tell me if u get the answer
@sobiaqayoom5852
4 жыл бұрын
Sir,if Fermi dirac function can b approximated to exponential term for moderate doping than how can we use exponential term in intrinsic carrier concentration equation?
@ManideepSegu
3 жыл бұрын
For intrinsic carrier, Fermi Energy is in the mid, so obviously EC - EF >= 3kT and same with EF - EV. So the same approximation of Fermi integral applies for intrinsic carrier as well. Hope this clarifies.
@venkteshsrn6142
3 жыл бұрын
@29:43 Ef's got cancelled so no fermi stuff is involved
@prithwishdas2614
Жыл бұрын
@@ManideepSegu thank you!!! that actually clarifies it
@AnimationsJungle
4 жыл бұрын
what will happen if doping is high....? what will happen to the equation ? please explain thank you
@amitkumar-sh2lk
3 жыл бұрын
next lecture it is given
@deepstudywithamitkumar4124
4 жыл бұрын
Great explanation clear all dought
@agentwalker7045
2 жыл бұрын
29:29 sir how that formula is applicable to intrinsic semiconductor ???? It was derived when there's moderate doping but in intrinsic semiconductor there's no doping .....then how can it be applied here ?????
@prithwishdas2614
Жыл бұрын
I have the exact same question can anyone please clarify
@vishalgour3847
Жыл бұрын
Even I have the exact same question !!! @nptel-indianinstituteofsci8064 Can you please clarify
@notnemeziz
8 ай бұрын
its because even in case of no doping the condition given ie Ec-Ef>=3KbT is still satisfied.....so actually it was just not applicable to high doping, anything else works
@roniadhikari2724
2 жыл бұрын
👌👌👌👌
@anishsinghrajput8981
4 жыл бұрын
respected sir i have a dout ,,it EF=EV then what is the type of material..same for Ef=Ec ,.thank you
@mohdmonish3566
3 жыл бұрын
@Anish singh rajput, if EF=Ev, then it will be an insulater, if Ef=Ec it will be a metal( conductor)
@shivkumar-mx6pb
6 ай бұрын
@@mohdmonish3566 It will behave like a metal or inverse, not exactly metal, or we can say highly doped semiconductor till EF=EC, after that, they call it a degenerated semiconductor.
@farzanasnigdha7048
3 жыл бұрын
Thanks a lot sir
@uditbhattacharya4476
3 жыл бұрын
Just FATAFATI
@louerleseigneur4532
3 жыл бұрын
Awesome
@josephalias5671
3 жыл бұрын
good work
@gayathris2196
2 жыл бұрын
Sir please say reference book for lectures
@himanshusalunkhe88
2 жыл бұрын
Street man and Banerjee
@malothsanthosh2032
Жыл бұрын
sir please share the ppts or pdf
@ratneshgupta2770
4 жыл бұрын
sir has said Ec-Ef>3kt where k is boltzma constant but sir has said Ef-Ec ad i the f(E) eq also it is Ef-Ec so I am confused it is Ef-Ec or Ec-Ef anyone knows reply
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