Never once had to by heart derivations and formulas ..after your lects.. ty sir 💯
@EngineeringPhysicsbySanjiv
Жыл бұрын
Glad to know it helped you.. all the best👍
@sandeepkumarg1889
3 жыл бұрын
nice lecture explanation is very good, thanks sir , kal mera exam hai aur aaj mai aapka semiconductor ka pura course dekha liya , bahut hi accha laga sab samajh aa gya
@EngineeringPhysicsbySanjiv
3 жыл бұрын
All the best for your exam..👍
@junaid7275
15 күн бұрын
thank you all this lectures are very helpful you're a saviour
@himanshu_27tt
2 жыл бұрын
Thanks for saving my semester 🙏
@EngineeringPhysicsbySanjiv
2 жыл бұрын
Most welcome and best luck..
@vvvvvv13614
2 жыл бұрын
🙂🙂 bas jo pdf bheja tha use revise kar Lena vro😁 maths wala nahi… physics wala
@himanshu_27tt
2 жыл бұрын
@@vvvvvv13614 konsa pdf?
@vvvvvv13614
2 жыл бұрын
@@himanshu_27tt jo kal WhatsApp pe bheja tha vro revision wala… hui hui hui
@harishnadar7492
Жыл бұрын
Crystal clear lecture...much needed such lectures ..thank you sir
@EngineeringPhysicsbySanjiv
Жыл бұрын
So nice of you
@billy-cg1qq
Жыл бұрын
Amazing explanation and fantastic series! Can you though explain how to calculate the length of the space charge/depletion region? I found a question on that and you didn't mention it
@pavelroy8277
3 жыл бұрын
keep going on sir, you're doing a great job :))
@EngineeringPhysicsbySanjiv
3 жыл бұрын
Thank you.. keep watching and share with your friends..
@dilshadadil6240
Жыл бұрын
sir what will happen to the bend of the energy band if the concentration of doping is increased
@amhnguyen9829
Жыл бұрын
why is the energy in n side lower than in p side? Thank you Sir?
@Neeraj-is1jt
Жыл бұрын
5:45 Why Fermi level have to be of same level on. Both side If possible can you please reply with centre of gravity concept of Fermi level
@EngineeringPhysicsbySanjiv
Жыл бұрын
A difference of Fermi level means a difference in overall potential energy for the electrons. If one side of the junction had a higher Fermi level than the other side, the electrons would move from the higher level to the lower level. As electrons leave the region of higher Fermi level, the Fermi level there decreases as states become available. Eventually the Fermi levels in both regions equalize, and the overall flow of electrons stops. This is the equilibrium state of the p-n junction, where the Fermi level everywhere across the junction is the same, i.e. a constant.
@Neeraj-is1jt
Жыл бұрын
Sir @ 16:20 Q1.where is the Fermi level of each n and p type semiconductor? Q2. If they are not aligned what does it represents?
@EngineeringPhysicsbySanjiv
Жыл бұрын
When we forward bias, Fermi levels split again and transfer occurs when Vb is such that Ef(n)-Ef(p)=qVb
@anthonyrojas9989
3 жыл бұрын
You might save me in this course. Thank you
@EngineeringPhysicsbySanjiv
3 жыл бұрын
Happy to help!
@devpatel3539
2 жыл бұрын
Great video sir it helped a lot!
@EngineeringPhysicsbySanjiv
2 жыл бұрын
Glad it helped.. best luck..👍
@sowmyagolla9815
3 жыл бұрын
Sir can you please tell why width of depletion layer increase when we increase reverse bias voltage
@EngineeringPhysicsbySanjiv
3 жыл бұрын
When p-n junction is reversed biased, the positive terminal of the external battery is connected to n-side of p-n junction and its negative terminal to p-side of p-n junction. The positive terminal of the external battery attracts the majority carrier electrons from the n-region and its negative terminal attract the majority carrier holes from p-region. Due to it, the majority charge carriers move away from the junction. This increases the width of the depletion layer.
@sowmyagolla9815
3 жыл бұрын
@@EngineeringPhysicsbySanjiv OK thank you very much sir
@EngineeringPhysicsbySanjiv
3 жыл бұрын
Welcome..
@sravani5516
3 жыл бұрын
Nice explanation sir...thank you
@EngineeringPhysicsbySanjiv
3 жыл бұрын
You're most welcome
@mrityunjaypandey6830
9 ай бұрын
Nice❤❤
@abhisekhansda1766
11 ай бұрын
Sir, can you share this ppt?
@aryanmahajan4011
2 жыл бұрын
Amazing sir
@EngineeringPhysicsbySanjiv
2 жыл бұрын
Thank you.. keep watching
@student4145
Жыл бұрын
Thank you Sir!!!
@EngineeringPhysicsbySanjiv
Жыл бұрын
Most welcome and best luck 👍
@yz_3246
2 жыл бұрын
Thank you sir 🙏
@EngineeringPhysicsbySanjiv
2 жыл бұрын
Most welcome and best luck..
@dattareddy6170
2 жыл бұрын
8:27 how drift current flows if pn junction is unbiased(not connected to in a circuit)
@EngineeringPhysicsbySanjiv
2 жыл бұрын
Due to diffusion of carries, charges are developed near the junction which result in electric field. This electric field gives rise to the drift current.
@bochan5162
7 ай бұрын
17:29
@papareddyvarsha7311
3 жыл бұрын
Thank you very much sir
@EngineeringPhysicsbySanjiv
3 жыл бұрын
Welcome
@himansuiiiii
3 жыл бұрын
thanks a lot, sir
@EngineeringPhysicsbySanjiv
3 жыл бұрын
Most welcome...
@iWontFakeIt
3 жыл бұрын
thank you sir
@EngineeringPhysicsbySanjiv
3 жыл бұрын
Welcome
@Cuttingtea999
3 жыл бұрын
Diagram is so difficult to understand
@EngineeringPhysicsbySanjiv
3 жыл бұрын
Yes. but if you understand this energy band diagram concept, then it will be very easy for you to understand the properties of any semiconductor device. Just understand that It is difficult for electrons to climb up the energy hill. And the energy bands on the side connected to negative terminal of battery will rise up.
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