i wasted hours and hours trying to make sense of the absolute madness that NCERT is, when i could've just watched a 11min video....a simply brilliant explanation

@OmarKhan-ds1si

3 жыл бұрын

When 5V are applied to pull electrons then why we need forward biasing volatge of 0.7V at base ?

@revanthreddy5239

2 жыл бұрын

Dude NCERT is not mad. A book is never mad, every book is great and special in its own way

@teratrox4685

2 жыл бұрын

@@revanthreddy5239 NCERT is a joke. Not all books are divine. If you are still adamant that every book is special, I'd like to know how you feel about Mein Kampf.

@rishabhranjan5162

2 жыл бұрын

@@teratrox4685 Ok clown🤡

@siddharthamondal4346

2 жыл бұрын

@@teratrox4685 I agree with you. Such a weird book. Never updated even once moreover many erratic piece of information given in NCERT. Our chem sir hunted lots of misinformation in NCERT

No lecture can match urs not even the paid ones hats off💂

@shiwamkarn5215

3 жыл бұрын

true

I almost felt like crying 'cause i couldn't understand the concept of transistor no matter how many videos i watch, no matter how many times my teacher explains to me. This video cleared all my confusion and gave a very clear explanation. Also, when the teacher in the video explains things he sounds so excited and happy that it makes me feel like I am actually studying something very exciting. Thank you for this video. It saved my day.

@furiousarpan7473

Жыл бұрын

He is the king

@sanjanasathsarani3573

5 ай бұрын

I can understand the the feeling we both were in the same boat before watching the video

This is the only vid in KZread which made my understand the concept. Thanks a lot😁

I'm very possessive soo that's the reason I won't suggest anyone to watch your videos cause you are the best best best teacher in my life.... And your teaching is damn excellent... 👍🏻

Long story short: EXCELLENT teaching technique and the way to approaching to the key concept is just mind blowing! 😳

i actually do not have words to say ... i wasted lot of time to grap the thing inside a transister and finally i can rest in peace ....THANK YOU VERY MUCH

You have been my motivation ! I have been loving physics since I started watching your videos. 🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥

i cant tell u how thankful i am . i will definitely try to help you guys when I start earning on my own . Your that physics teacher we never knew we wanted

finally i found a teacher who teaches in the way i wanted to learn..thank u so much bhaiya ..love u soo much

This is probably the best video on transistor... I totally wasted hours to understand this concept but i couldn't. This video cleared the concept within 11 minutes .

Alhamdullilah ☝️❤ now i have understood amplification atleast....thank you so much mister

Yes. In very less time you explained a difficult topic. Thank you so much.. Teaching tools are also great.

Great video.. I ended up here to understand this thing... A crystal clear approach.. Thank you Khan Academy...

Simply wonderful.. Thank you soo much.

I don't understand how the recombined electrons would give rise to base current..

What good have i done to deserve you Khan academy❤️. thank u Soo Soo much

Now i know what transistor actually do....thanks dude😊

Beautifully explained, as it explained practical example...hats off to u r lecture...really awesome

Really ... khan academy videos are the best .... the explanation of theory is so good . I wasted many hours in understanding this concept. But here I got the concept within 10 min . Thank you khan academy

It's really concept clearing.

if there had had a way to rate, I would have rated this video 10 out of 10 over this topic! Honestly all of my confusions have gone over it, thanks💝

Simply brillant! LOVED IT❤

Great explanation sir ,this is what I needed 🙏❤️

Sir these are the things which makes my concept in ECE luv from nit kkr

I'm very lucky to see this video😍😍 But my friends don't 😈😈

Best conceptual videos on semiconductors on this channel..👍👍👍

Great explanation..Nothing can match that

Finally got the best channel after watching sooooo many videos..🙏🙏💯💯💯

बहुत ही अच्छा और अतुलनीय विवरण दिया गया है।

i paid for a course and they failed to teach me. they are no way near this clearer explanation. thank you brother for making our life easier.

Best video on transistor on the internet 🎉

Omy god his explanation is so awesome

Excellent video I love the way it all came together at the end

Best video on transistors .♥♥

Teachers like this are blessing to humanity

This is just like gift from god. Feels like only thing i needed

that was phenomenal

Very simple and brilliant explanation.

Brilliant explaination ,,, thanx a lot 😭

What a explaination ! ❤️ Hats off 🔥

@ismailb4334

5 жыл бұрын

Preparing for the first midterms?

When peeps google Transistor they should be pointed here. Wonderful and easy to understand.

Incredible explanation

Sir I thank you from bottom of my heart.❤️

perfect explanation with a nice example👏

your explanation is awesome ............ so,thanks sir😊😊

Very well teached !

Love your channel sir. ❤ 👏 🙌 👌

Kindly explain more how an electron must go under recombination to be attracted from the base voltage?

Great.👌👌

A lot of this has to do with proper polarization from external power sources to properly bias the devices

OH MY GODD BRO YOU ACTUALLY MADE IT SO EASY GODDAMNN, ITNI SI BAAT MERA FACULTY SAMJHA NAI PARA THA

Your explanation is the best on you tube. Thank you

Sir you said we have to connect speakers on +5 V side so that we get higher current or voice but how could the current or sound come out from +5v side becuase from that side their is movement of electron occuring so current will move opposite to that direction ... Please clear this doubt sir

Absolutely insane🤯🤯🤯🤯

I don't know why most of the books teach this theory using the direction of current. It is more convenient to learn this part using the direction of flow of electron. I wasted hours to understand it until I came across this video. Thank You... Nothing Like This Channel...♥️

Sir, at 04:55, you mentioned that no amount of supplied voltage would cause flow of electrons due to the presence of the barrier in the PN Junction. But a PN Junction is weakened by increasing voltage, right? So doesn't a weak barrier result in more flow of electrons sir? Kindly clarify

@KhanAcademyIndiaEnglish

3 жыл бұрын

There are two barriers, right? Almost all the supplied voltage comes across the top barrier (collector/base junction) reverse biasing it. The lower PN barrier (Emitter/base junction) is pretty much unaffected, and so electrons cannot be pulled out.

@ianbrewis8354

2 жыл бұрын

I was thinking the same thing thanks for the explanation.

Great explaination 💪👌

Well explained.

very well said

It would be even great if u answer peoples question in comments khan acadamy

Super explanation.....

Great explanation sir.

istg bestest teacher ever on electronics

thank you so much for this and btw i like your handwriting :D

Good job 👏

great lecture sir!!

Well explained

how does electron get pulled out if it recombines. shoudnt it form covalent bond

Thank You so much sir 🥰🥰🥰🥰🥰 Really very well explained

I can just say a huge huge thnx sr

Mahesh thank you so much, I love you man!!! ❤❤

Masterpiece.

I finally got it!

Will you add some lectures on JFET's and MOSFET's?

Will this transistor mal function when all the wholes are recombined with in p region?

Sir is it possible to make an overview video of electronics?

The transistor is probably the most genius invention in the history of human beings.

@DrAdityaReddy

Жыл бұрын

The diode is. imo

Great stuff, Mahesh up there as one of Khan Academy's best instructors!

@khawjariyaz511

Жыл бұрын

Honestly better than physics wallah but underrated due to less drama... He gives education not drama

wow just wow

Woooow thankss

Best explanation

The video is great!! But why is it necessary for the electrons to undergo recombination in order to get pulled out?

@OmarKhan-ds1si

3 жыл бұрын

When 5V are applied to pull electrons then why we need forward biasing volatge of 0.7V at base ?

@gauravav1635

2 жыл бұрын

@@OmarKhan-ds1si same doubt

@lakshitadixit5

Жыл бұрын

@@OmarKhan-ds1si because 0.7 V is the breaking voltage for silicon diode, means it cannot pass the the potential barrier which is the in built electric field in a PN junction from N to P which repels the flow of holes from P to N so in order for the holes to pass from P to N a voltage of 0.7 volt is required for a silicon diode doped with phosphorus and boron.

@lakshitadixit5

Жыл бұрын

@@OmarKhan-ds1si there is no potential barrier bw the metallic plate and N so electrons can be pulled easily

@lakshitadixit5

Жыл бұрын

Because recombination destroys holes and electron so for every electron destroyed another electron gets pulled and then the electron that gets pulled generates a new hole.

If the sound to the mic is very loud to a point that makes the voltage higher than 5V, what would happen? since now the reverse bias becomes forward bias on top

@revitharevitha5356

3 ай бұрын

We could add a resistor so that it doesn't exceed 5V.We could make the voltage drop

perfect

I have a doubt like why don't the barrier potential at each junctions get cancelled out as they would be acting opposite in direction

Finally I understood how a transistor works! Hats off😍

@Msmsm184

2 ай бұрын

kzread.info/dash/bejne/oqWZxJhvqNXRkqg.htmlsi=BhPuTiSGQulM87F2

ye lecture sunte huwe rona a rha tha k humy q aise teachers nahi milte 😢

Sir, please do course video on electronics and communication

Thank you :)

Why recombination is imp in p region for electrons to get pulled out from it

thank youuu 😄

Imagine getting like from this guy behind this legendary vedio

Lit🔥🔥

Can you please make a video about thyristor?

''When u think about sth u don't understand, u hv a terrible Uncomfortable feeling called Confusion some times it is very difficult and unhappy buisness ''

Excellent video

You are really a great teacher

@snowboarder1pro

2 жыл бұрын

Thanks

Tnx mann

At 8:25 mins, when you talk about the small fraction of recombined electrons and as a result get pulled out of the base. Why would they be pulled out after recombining?

@deebiga1781

2 жыл бұрын

I don't think every electron gets the chance to recombine because P region is very lightly doped. And before an electron gets the chance to recombine, it might get pulled into the 0.7v terminal because the probability of recombination is very less here.