🔴 SEMICONDUCTOR | Valence Band, Conduction Band, Forbidden Energy Gap

🔴 SEMICONDUCTOR | Valence Band, Conduction Band, Forbidden Energy Gap | video in HINDI

Рет қаралды 565,349

7 жыл бұрын

In this Physics (Digital Electronics) video lecture in Hindi for class 12 we distinguished among conductor, semiconductor and insulator with the concept of valence band, conduction band and forbidden energy gap. Valence band is the range in energy graph where all the valence electrons reside; whereas, conduction band is the range of energy contained by all the free electrons. The gap between those bands is known as forbidden energy gap. When that energy gap is very large, the element becomes an insulator and for a small gap that becomes a semiconductor. When those bands overlap each other, the material becomes a conductor.
A conductor is an object or type of material that allows the flow of an electrical current in one or more directions. Materials made of metal are common electrical conductors.
A solid substance that has a conductivity between that of an insulator and that of most metals, either due to the addition of an impurity or because of temperature effects. Devices made of semiconductors, notably silicon, are essential components of most electronic circuits.
A material or an object that does not easily allow heat, electricity, light, or sound to pass through it. Air, cloth and rubber are good electrical insulators; feathers and wool make good thermal insulators.
SEMICONDUCTOR TYPE | Intrinsic Extrinsic p-Type n-Type
• 🔴 SEMICONDUCTOR TYPE |...
p-n Junction | Forward and Reverse Bias
• 🔴 p-n Junction | Forwa...
Rectifier - Half wave and Full wave
• 🔴 Rectifier - Half wav...
Voltage-Current characteristics of p-n Junction Diode
• 🔴 Voltage-Current char...
LIGHT EMITTING DIODE or LED
• 🔴 LIGHT EMITTING DIODE...
TRANSISTOR - Part 1
• 🔴 TRANSISTOR - Part 1 ...
Full Wave BRIDGE Rectifier
• 🔴 Full Wave BRIDGE Rec...
LOGIC GATES
• 🔴 LOGIC GATES | video ...
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Пікірлер: 461

@edupoint.physics 5 жыл бұрын

🔴 Please watch new videos (Link below 👇👇👇👇👇)for more details and deeper knowledge. Please keep supporting new videos 👍👍👍👍, so that, we can create more detailed videos. Please write you views in comment box. 🔴 Band Theory (Part 1) || Why is Hydrogen Diatomic kzfaq.info/get/bejne/atZjqrKqq53MgKs.html 🔴 Band Theory (Part 2) || Why are bands created kzfaq.info/get/bejne/l76jZZZ1yt-tpIU.html 🔴 Band Theory (Part 3) || Difference among metals, semiconductors and insulators kzfaq.info/get/bejne/ereFi66Zq7OlaIE.html 🔴 Band Theory (Part 4) || Why is Silicon a semiconductor material kzfaq.info/get/bejne/mN6Uf8mdndqudo0.html

@566kushpanara3 5 жыл бұрын

Sir aap please lcr circuit in dc source pe video banaye please...please kuch nahi samaz aata isme isiliye

@khalidchauhan6152 4 жыл бұрын

Sir aap itna achha q padhate ho Really sir u have a very very very deep knowledge in every concept

@BRAJESHKUMAR-ve6hj 3 жыл бұрын

I sincerely watching your every video regarding electronics.

@laxmimunigala7365 2 жыл бұрын

Can u tell me why the elctrons are not allowed to stay in the gap between conduction band and valence band

@khateebmalik1058 2 жыл бұрын

Mjhy. Zara samjh ni i

@khalidchauhan6152 4 жыл бұрын

Sir I watch ur lectures when I couldn't understand from books and other teachers but after watching ur lectures I become satisfied in every concept

@chetanapatel9261 2 жыл бұрын

Excatly

@rupeshthapa616 2 жыл бұрын

Excatly

@joyaraninath9724 2 жыл бұрын

TRUE

@abhinavjoshi4077 Жыл бұрын

@@chetanapatel9261 exactly

@a__shekhar 5 жыл бұрын

The best explanation....the best online teacher...the best method.....i have ever found.....thanks a lot sir g...🙏🙏🙏

@Bharatsoni82 Жыл бұрын

Very well explain 🙂

@shivdarvarshney9383 5 жыл бұрын

Sir kabhi bhi paise mein apne kaam ko mat bechna Means: apne lectures ko paise me kabhi mat behna ...😊😊😊😊 I AM ALWAYS WITH YOU. .

@mayanksingh5777 5 жыл бұрын

Cal boska tu kyo pada ra free pad la net ka pasia tere baap de ra tuo kyo apna eman bach ra fuk off

@yashrathore2492 4 жыл бұрын

@@mayanksingh5777 Pagal h kya be lavde

@yashrathore2492 4 жыл бұрын

@@mayanksingh5777 Pahle jaa ke hindi sikh phir likhne ke baare me sochna chirkut

@andiamakaza24 4 жыл бұрын

@@yashrathore2492nice😀

@marnix_antil 5 жыл бұрын

Best ever explanation I found about this theory of semiconductors .I am student of Btech 2nd year Right now ,I have this subject in my Ist years Ist sem and I have got supply in that subject and I was looking for right explanation about that subject and finally I found that .Thank you so much sir uploading such good explaining videos on this topic ever.

@Akash-py6pb 6 жыл бұрын

Sir the best part about you is that you know where the students will face problems, Thank u sir

@sumanmandal6344 6 жыл бұрын

giving u a heartly thanks for bsc part3 vdo.

@reenapainkra3087 6 жыл бұрын

All doubts clear..!! Sir plz make more video related to this... 😊

@dreamtechadv2661 5 жыл бұрын

😊😊

@Ritik352 4 жыл бұрын

😂😂😂

@Sachinyadav-ls9et 4 жыл бұрын

Glat h video ye ok

@4_line_writing341 3 жыл бұрын

Cute

@yashasvichauhan5104 5 жыл бұрын

thanks for this video sir. It helps me to know the property of semiconductors.

@720kabirk.4 6 жыл бұрын

The one n only channel with best dealing capacity.

@vanossgaming3201 5 жыл бұрын

Thank you soo much sir... You are the best teacher😊 May god bless you.

@learnaboutlife9031 6 жыл бұрын

For basic of electronics engineers.. Amazing explanation

@khalidchauhan6152 4 жыл бұрын

It is one of the best channel where I can clear my all doubts about any theory

@byvijaymishra7666 4 жыл бұрын

The way of teaching is fabulous sir

@gracefulgaze714 3 жыл бұрын

Simple but very comprehensive and precise🙌🙇‍♀️

@amaanjiwani4942 4 жыл бұрын

Full series very well explained! 🙌🙌🙏🏻🙏🏻👏👏👍🏻👍🏻

@arvindkumar-cy4dy 4 жыл бұрын

What a wonderful lecture delivery technique sir which can be easily understandable ....thanks a lot sir🙏🙏🙏🙏

@cytoin 4 жыл бұрын

Best teacher,i never have doubt in ur videos sir.

@mcreation656 Жыл бұрын

Best video on KZfaq for semiconductor

@Navinkumar-bo2og 5 жыл бұрын

You have been solved my problem of energy band thanks a lot...

@easyphysics7910 5 жыл бұрын

Whenever i have any doubt in any topic of physics..i always firstly search it in #edupoint.....thnkuuu so much sir for ur efforts...

@jashandeepsinghsidhu117 6 жыл бұрын

awesome explanation sir

@arsh_patel024 6 жыл бұрын

sir i want quick revision of semiconductor and dual nature can u upload video related to this ...

@kgnstarinterior2118 5 жыл бұрын

sir thanks for saving my life your videos is short on the other hand these are too much efficient for clearing every concept THANK YOU SO MUCH from my core of 💓💓💓💓💓💓💓💓💓💓💓💓💓💓💓💓💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💘💘💘💘💘💘💘💘💘💝💝💝💝💝💝💝💝💕💕💕💕💕💕💕💕💕💕💕💕💕💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💜💜💜💜💜💜💜💜💜💚💚💚💚💚💚💚💚💙💙💙💙💙💙💙💙💙💛💛💛💛💛💛💛💛💛💛💛💛💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💘💘💘💘💘💘💘💘💘💝💝💝💝💝💝💝💝💕💕💕💕💕💕💕💕💕💕💕💕💕💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💜💜💜💜💜💜💜💜💜💚💚💚💚💚💚💚💚💙💙💙💙💙💙💙💙💙💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💘💘💘💘💘💘💘💘💘💝💝💝💝💝💝💝💝💕💕💕💕💕💕💕💕💕💕💕💕💕💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💜💜💜💜💜💜💜💜💜💚💚💚💚💚💚💚💚💙💙💙💙💙💙💙💙💙💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💘💘💘💘💘💘💘💘💘💝💝💝💝💛💛💛💛💛💛💛💛💛💛💛💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💘💘💘💘💘💘💘💘💘💝💝💝💝💝💝💝💝💕💕💕💕💕💕💕💕💕💕💕💕💕💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💜💜💜💜💜💜💜💜💜💚💚💚💚💚💚💚💚💙💙💙💙💙💙💙💙💙💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💘💘💘💘💘💘💘💘💘💝💝💝💝💝💝💝💝💕💕💕💕💕💕💕💕💕💕💕💕💕💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💜💜💜💜💜💜💜💜💜💚💚💚💚💚💚💚💚💙💙💙💙💙💙💙💙💙💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💘💘💘💘💘💘💘💘💘💝💝💝💝💝💝💝💝💕💕💕💕💕💕💕💕💕💕💕💕💕💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💜💜💜💜💜💜💜💜💜💚💚💚💚💚💚💚💚💙💙💙💙💙💙💙💙💙💛💛💛💛💛💛💛💛💛💛💛💛💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💘💘💘💘💘💘💘💘💘💝💝💝💝💝💝💝💝💕💕💕💕💕💕💕💕💕💕💕💕💕💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💜💜💜💜💜💜💜💜💜💚💚💚💚💚💚💚💚💙💙💙💙💙💙💙💙💙💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💘💘💘💘💘💘💘💘💘💝💝💝💝💝💝💝💝💕💕💕💕💕💕💕💕💕💕💕💕💕💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💜💜💜💜💜💜💜💜💜💚💚💚💚💚💚💚💚💙💙💙💙💙💙💙💙💙💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💘💘💘💘💘💘💘💘💘💝💝💝💝💝💝💝💝💕💕💕💕💕💕💕💕💕💕💕💕💕💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💜💜💜💜💜💜💜💜💜💚💚💚💚💚💚💚💚💙💙💙💙💙💙💙💙💙💛💛💛💛💛💛💛💛💛💛💛💛💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💘💘💘💘💘💘💘💘💘💝💝💝💝💝💝💝💝💕💕💕💕💕💕💕💕💕💕💕💕💕💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💜💜💜💜💜💜💜💜💜💚💚💚💚💚💚💚💚💙💙💙💙💙💙💙💙💙💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💘💘💘💘💘💘💘💘💘💝💝💝💝💝💝💝💝💕💕💕💕💕💕💕💕💕💕💕💕💕💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💜💜💜💜💜💜💜💜💜💚💚💚💚💚💚💚💚💙💙💙💙💙💙💙💙💙💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💘💘💘💘💘💘💘💘💘💝💝💝💝💝💝💝💝💕💕💕💕💕💕💕💕💕💕💕💕💕💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💜💜💜💜💜💜💜💜💜💚💚💚💚💚💚💚💚💙💙💙💙💙💙💙💙💙💛💛💛💛💛💛💛💛💛💛💛💛💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💘💘💘💘💘💘💘💘💘💝💝💝💝💝💝💝💝💕💕💕💕💕💕💕💕💕💕💕💕💕💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💜💜💜💜💜💜💜💜💜💚💚💚💚💚💚💚💚💙💙💙💙💙💙💙💙💙💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛💛🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡🧡💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💘💘💘💘💘💘💘💘💘💝💝💝💝💝💝💝💝💕💕💕💕💕💕💕💕💕💕💕💕💕💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💜💜💜💜💜💜💜💜💜💚💚💚💚💚💚💚💚💙💙💙💙💙💙💙💙💙💛💛💛💛💛💛💛💛💛💛💛💙💙💙💛💛💛💛💛💛💛💛💛💛💛💛💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💖💘💘💘💘💘💘💘💘💘💝💝💝💝💝💝💝💝💕💕💕💕💕💕💕💕💕💕💕💕💕💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💫💜💜💜💜💜💜💜💜💜💚💚💚💚💚💚💚💚💙💙💙

@rajendratodkar5343 5 жыл бұрын

Thaks.Your Explanation technique is very simple for understanding for every body.

@saleemchauhanchauhan3999 6 жыл бұрын

Sir your every video is best and clear my all doubts thank-you sir

@theexplorer7578 4 жыл бұрын

Nice way of understanding sir. I Also used to watch your video when I dont understand from anyone.

@dkstudio3749 3 жыл бұрын

Sir, my big confusion solve in few minutes by your amazing explanation 🙏🙏🙏🙏

@shivasharanrajapur6089 4 жыл бұрын

its relay very helpful for core ece,e&e learner so.. thank you very much sir.. i don't have vocabulary to express my gratitude

@abhishekdebta9326 5 жыл бұрын

Kya baat sir.. I'm impressed.. So nice teaching

@archh3184 6 жыл бұрын

Sir u have a very intelligent mind and a very helpful nature.

@gabbruplaboy9837 4 жыл бұрын

Best channel for physics, maja aa gaya sir, you are master of physics

@vaishalithukral9129 6 жыл бұрын

Sir the energy given to make electron freely available, can we relate this to energy required to excitation of electron in higher orbital?

@learnaboutlife9031 6 жыл бұрын

Awsm videos also for engineers.. Thnku sir

@dayanandkasle5146 5 жыл бұрын

this is the real teaching method

@binitakumari2080 5 жыл бұрын

Sir plz make video on Fermi level in semiconductors.. 🙏🙏

@abhaygautam6148 6 жыл бұрын

Thankyou sir...graph explaination was very helpul

@eatandrepeatt 4 жыл бұрын

Best video.... Thank you so much Sir 😊🇮🇳

@divyapradhan9452 5 жыл бұрын

hi, ur teaching is superb.

@cyanghost4431 Жыл бұрын

your videos always give some reading between the lines feeling you are one of the reason why i love physics learned a lot from you thank you sir 💝

@prakhar9137 2 жыл бұрын

Best explanation in the world ♥️

@vatsaldave8145 5 жыл бұрын

Very helpful video sir..... Thank you so much 🙏🏻

@hemenchamuah2244 6 жыл бұрын

Such a nice video sir... Thnk you Guruji...🙏

@tahurapathan7648 4 жыл бұрын

Thank u sir it helped alot!!

@digambardagade288 7 жыл бұрын

very very nice channel may be best . Sir can u upload video on wave theory of light interference diffraction and polarisation ie wave optics

@edupoint.physics 6 жыл бұрын

+digambar dagade Thank you for your support. Wave optics will come. Bas aap sabki dua milti rahe.

@kgnstarinterior2118 5 жыл бұрын

@@edupoint.physics mashallah zaroor kyou nahin

@whatsappstatusandmusics9900 5 жыл бұрын

Bhai wah

@khalidchauhan6152 4 жыл бұрын

Good demand bro

@anandsharma5489 4 жыл бұрын

You are best teacher ever... Love your work

@edupoint.physics 4 жыл бұрын

Hello Anand sharma, Thank you very much for your support and encouraging words. Aapka saath hamari taqat hai.

@AyushSingh-uk5wo 5 жыл бұрын

Best sir on youtube

@gauravtiwari4224 5 жыл бұрын

Kya kamal ka padhaya sir mja aagya sab smjh Aa gya...

@KGopidas Жыл бұрын

Excellent treatment of an abstract topic!!!

@vishaldevle2390 5 жыл бұрын

Thank you so much sir respect from my heart💜❤ realy you easily explained any tough topic

@vinayyadav2490 3 жыл бұрын

Sir! For your contente just no word except amazing.......

@abhishekguptaabhi854 4 жыл бұрын

वाह गुरू जी आनन्द आ गया समझने में यह विडिओ। आपकी सभी वीडियो आसानी से और एक बार में ही समझ में आ जाता है। आपका धन्यवाद 🙏🙏🙏🙏🙏🙏🙏

@shyambabuyadav698 5 жыл бұрын

Thank you sir .your teaching method is best

@shreeyadave6679 2 жыл бұрын

BOHOT BOHOT SUNDAR PADHAAYA AAPNE SIR

@PrakashKumar-ki7hw 6 жыл бұрын

Easy to understand. thanks to make this vedio

@zaidpatel7312 5 жыл бұрын

Good explanation! 👍 Keep it up 👌👌

@devendertewatia3094 3 жыл бұрын

This is fantastic vedio . This clear my all doubts about it. Thanku for this useful vedio

@adityarawat01 5 жыл бұрын

Plz tell all important topics of physics in one video, which can pass a student . please sir

@anandsharma5178 5 жыл бұрын

Quite good video! Understood the main concept. Thanks.

@priyarathore9266 5 жыл бұрын

sir aapke videos se mere saare doubts clear ho jaate hain ......so plzzzz semiconductor ke sabhi topic cover kr dijiye...as early as possible

@anony2806 4 жыл бұрын

Very good explanation sir, my all doughts got cleared.

@shamu9114 2 жыл бұрын

😊👍thank you so much Sir for this amazing lecture

@raht9578 4 жыл бұрын

Top class video 10/10 Superb

@RahulPatil-yi7qj 5 жыл бұрын

It was very helpful Thank you so much

@arindamdeka8095 4 жыл бұрын

Thank you so much Sir...

@ag654 4 жыл бұрын

Thank you #Edupoint . It was vert helpful

@janhvibhilare2092 5 жыл бұрын

Very helpful vedio thank u much sir

@waqqasElahismch 6 жыл бұрын

Sir you are best

@VivekSingh-vp9xn 5 жыл бұрын

Awesome lecture sir.

@ushavaradkar8648 5 жыл бұрын

Nicely explained very nice

@mpcreation8336 5 жыл бұрын

Sir this video helpful for microscopic explaintion

@jayhindchauhanchauhan5812 6 жыл бұрын

Thank you Sir

@chitranjanprasad03 5 жыл бұрын

Thank you sir for your valuable video.

@angshumankashyap307 Жыл бұрын

Thank you so much sir it's very much helpfull 💓

@aabidhusain230 4 жыл бұрын

You are great teacher

@babitakotilya7153 5 жыл бұрын

Excellent explanation sir

@babita_makeoverpoint8738 5 жыл бұрын

Best explanation sir👌👌

@rahulpal6434 6 жыл бұрын

Very nicely explained....

@charliegaming1484 6 жыл бұрын

thanx sir my all douts clear

@nandanbhowmick1825 2 жыл бұрын

Best explanation.thanks

@khuzama4358 5 жыл бұрын

Greatest explanation 🏁🏁🏁

@vijayprakashupadhyay4725 6 жыл бұрын

superb keep it up can u upload whole chapter AC&DC plz as soon as possible

@prajwalzade7928 3 жыл бұрын

Thank you sir, you really help me again thank you.

@shekharchaurasiya5236 Жыл бұрын

Thank you for such a great 👍 video.

@shubhamfuloria7047 5 жыл бұрын

Sir you are the best

@muskangoyal4868 6 жыл бұрын

My fav channel edupoint

@Monk_minds_lessons 3 жыл бұрын

Thank you very much sir for this explanation , main 2-3 years se ye smjh nii paya rha but finally main smjh gya thank you sir 😊🙏🙏

@VaraPrasad0004 3 жыл бұрын

Excellent explanation... Continue more videos...

@YoursLuffy 3 жыл бұрын

Probability of getting electrons in an energy state below the Fermi level at T=0K will be 1 or 0 ???

@amiestudycircle 6 жыл бұрын

Great video.

@priyaanshumittra4439 5 жыл бұрын

Thanks sir bahaut Jaga padha but Yaha aake samajh aaya 😊

@ketakidesai6437 4 жыл бұрын

aap ne to pura concept enplane kiya I am very grateful 😎😎😎😎😎😎😎😎😎😎😎😎😎

@bishalkumar1229 6 жыл бұрын

Great sir great!!!

@rishikeshyadav1273 6 жыл бұрын

tanks sooooo much sir I can understand easily in this channels thank I sir

@yashaseri8550 Жыл бұрын

Thanks a lot sir ji

@bhagyavathi4214 4 жыл бұрын

very helpful! Thank you sir

@mathmagicians6892 4 жыл бұрын

Bhagya bhagya(bhaag ja bhaag ja)

@harshtiwari9966 5 жыл бұрын

Ab samaz aaya thnkew so much sir

@yashevlogger 6 жыл бұрын

very nice video,sir upload video conductors and insulators

@chandraprasadrizal5312 4 жыл бұрын

Which semicunductor increases and emmits current ?

@user-yt8uk5oj2j 6 ай бұрын

Thank you so much sir ❤❤❤