Class 12th - Light Emitting Diode (LED) | Semiconductors | Tutorials Point

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[@therealprabh8830]

A good teacher is one who can make a complex concept easy to understand and you are one among them.

[@alexngaya6855]

I agree

[@shivamsingh7008]

Lol

[@glprasad4586]

100 percent you are right

[@learningskillsbyrohitraut4533]

No else can replace your position in such way of teaching
May God send you many more times in this world RIP Sir

[@vanamasandya4027]

What happened?

[@தேமதுரம்]

Your way of teaching is awesome sir . It is crystal clear and tq so much sir.👌👌👌

[@anuragtripathi6175]

Studying from him since three years he completely changed me

[@parveenverma2766]

pradeep sir you are true
teacher

[@samanch4451]

Sir I saw your 2 lectures... I really understood both lectures in good way.. I can present r write in my own wording due to your lectures ...thanku Sir!

[@shashwatshukla6713]

Love you sir🥰
Best teacher ever seen.

[@YASHPALSINGH_RAI]

@4:54 With due respect Sir, Energy gap for Silicon is 1.12 eV might be you were thinking of germanium. Thank you for this Sir ☺️😇

[@michaelrafales2782]

Great explanation!! Thankyou!

[@human3444]

Thank you.Very very very good teacher.❤

[@_callmegupta]

he died 1.5 year ago...

[@mostafarumi3021]

Excellent sir.

[@azarshaikh5131]

Plz sir give solution of this problem. What is current LED in cercuit assume that voltage drop across led is 2volt, IF=2.2k ohm, and 15volt?

[@PoeticDevice484]

Great teaching

[@gangadharsaragadam6562]

Awesome sir thank u

[@iukstandards8955]

Sir ,during recombination th current will flow

[@pjbindas99pjbindas38]

sir but it is in forward bias then why majority charge carriers can't flow...

[@kamayanisharma1885]

Pjbindas99 pjbindas gc

[@kamayanisharma1885]

howled

[@kamayanisharma1885]

pagal

[@thecrazygamer7334]

Yes

[@baikannikitha1897]

Some books say, the energy for led has to be greater than 2 eV

[@dr.impulse5377]

its adjusted

[@yousifibrahim6655]

thanks, you are a great teacher

[@mohammedzubair5391]

I love d way how u teach

[@finallyy3959]

Iam also

[@human3444]

I am also.

[@apurva1911]

very very very easy and nice explanation sir

[@sciencezone5330]

Sir pdf mil sakti h kya in lecture ki plz replied

[@rahulthakare8265]

No.1 explanation

[@azarshaikh5131]

Superb video sir.....

[@vineetvats9912]

Just one clarification.....in NCERT it's given as while forward bias....the electrons flow from n side to p side and holes from p side to n side and at p and n side the minority charge carriers become in excess and hence combine with majority charge carriers which release energy equal to band gap energy in form of photons.....but sir say minority charge carriers flow ❓

[@harmansingh-tj2cf]

Bro minority carriers do not flow . Actually majority carriers ( say holes) when reaches n region , then they becomes minority carrier there

[@tupai62]

U have emel to ask questions?

[@Hariharan-vx7xq]

nice one sir i understod easly thanks

[@akshatdubey5967]

So sir when does a LED stops working when it is in forward biasing?

[@finallyy3959]

When our given potential is less than potential of deplition region

[@afzalhussain8344]

i m from pakistan,sir you are my ideal teaher.

[@chayanbiswas1861]

Awesome

[@saikoushik9223]

Thank you sir that was a very good lecture.Looking forward for many of your lectures

[@vamsisyoutube928]

Fabulous teaching sir

[@swamijustin3106]

No rong

[@kartickchandramanna267]

Good lecture.

[@pallavipotadar2644]

Sir, At 6.50 you said minority carriers will recombine. My question is that why these minority carriers don't attract towards battery or voltage supply.

[@lakshminarayana5998]

Yeah...i also had this doubt..

[@asimshah4938]

@@lakshminarayana5998 actually these are not minority charge carriers that will combine but majority charge carriers

[@gangadharsaragadam6562]

Because of internal resistances variation between battery nd diode nd also here majority is moving not minority

[@swarnalatha7286]

Repulsion will be there due to bias know

[@gaganbarman6604]

Then how black colour is emitted ?
What is the frequency of black colour ?

[@pkart8451]

White and black not a color it just appearance
When no colour then black appears

[@tarunkumar3165]

Sir I think majority charge carriers near the junction recombine to emit light energy. Is it?

[@dheerajanotra3378]

Tarun Kumar No because I think if charge carriers are majority then a lot of energy will be released and can be harmful

[@AhmadAli-nj4kx]

Tnk u sir

[@easyphysicsbyjmd]

But FB ristrict the minority charge carriers to cross depletion region

[@roct07]

That is for Indirect bandgap semiconductors like Ge, Si. We can use Direct bandgap semiconductors like GaAs

[@SanjayKumar-mu9qo]

Sir recombine krte krte agar sare free electron khatam , tab?

[@nitishnitish9172]

sir Ga As energy gap is 1.42ev sier then how it is used for led

[@apurva1911]

they perform the same function but light emitted is infrared which is not visible to us but can be sensed by the photodiodes..

[@nitishnitish9172]

Ok tq sir

[@rajghosh217]

Some books say, the energy for led has to be greater than 2 ev

[@ananditasharma6817]

They might be saying 1.8 eV approx i.e, 2eV

[@dhruvilgamingworld5675]

What is the Principle of it??

[@kunalkatara2330]

thank you sir

[@NighatMalik.]

For minority career biasing is reverse so they will b attracted towards terminals.. How can they combine?

[@abhashroshandash4239]

thanky you

[@howltae]

5:19

[@Levisgeorge123]

Why e back to same reason

[@AnkitSingh-mu5vm]

Thanks

[@astorgadexterpelaez3502]

❤️

[@AnkitSingh-mu5vm]

Sir ji

[@savagely1686]

logic gates nahi padhaya sir aapne

[@myknowledgeyeep9321]

Kya yaar

[@hemanthponnaganti9938]

I watched some what more vdos before this. For a point and i stopped watching after this vdo..