To see subtitles in other languages: Click on the gear symbol under the video, then click on "subtitles." Then select the language (You may need to scroll up and down to see all the languages available). --To change subtitle appearance: Scroll to the top of the language selection window and click "options." In the options window you can, for example, choose a different font color and background color, and set the "background opacity" to 100% to help make the subtitles more readable. --To turn the subtitles "on" or "off" altogether: Click the "CC" button under the video. --If you believe that the translation in the subtitles can be improved, please send me an email.

I put my heart and my soul into Physics after watching this channel. Nothing's boring in this universe if you tell a good story.

Eugene is back. I started watching him 5 years ago and still watch today :D thanks for this experience .

Brilliant, as always. This, and 3blue1brown, are two of the most enlightening channels on KZfaq. Thank you, sir!

Our lord and saviour has posted once more

Stay safe Eugene!We need you

This is what I wanted! Please make a video for LASER also if possible

School without going to school. Thank you so much for taking your time to educate world wide curious minds 😊

You can help translate this video by adding subtitles in other languages. To add a translation, click on the following link: kzfaq.info_video?ref=share&v=hrpPKCDLRN0 You will then be able to add translations for all the subtitles. You will also be able to provide a translation for the title of the video. Please remember to hit the submit buttons for both the title and for the subtitles, as they are submitted separately. Details about adding translations is available at support.google.com/youtube/answer/6054623?hl=en Thanks.

The music on your videos personally keeps me more concentrated and curious throughout the length of the videos. Thank you so much for this extraordinarly instructive content!

The genius of this video is the depiction of the rising and lowering electron energy levels with the differing 1) N or P doping; 2) voltages applied across the diodes; 3) direction of applied voltages; and 4) location of contacts allowing current flow. For those of us who are right hemisphere and cerebellar thinkers, this makes it very memorable. It just makes sense to see the electrons having to struggle to move up steeper or less steep energy level “hills”. Well done.

Semiconductors were a tough thing to get my head around in electronics class, the professor was great, but couldn't explain the physics. This will likely be my new mental model. Thanks!

Plz more on semiconductors! I adore this channel🥰 i hope you all are safe and healthy!♥️♥️

Great! I wish I had met this video in my student days...

You are super creative Eugene! The best intuitive video ever watched about the PN junction diode and NPN transistor. keep creating this kind of content to solidify the base of upcoming science students.

This staircase animation seemingly gives a sense of thrill. Seems like we are watching a classic movie or game of unpredictable stairs.

Прекраснейшая визуализация вопроса, долго меня мучавшего, спасибо!) Я не изучал физику на серьезном уровне, но всегда было интересно как все устроено, спасибо за ваш канал!

Physics is one of my favorite subject 😍😍😍 animation that you are making is great

I love the quantized aspect of the visualization. Between the energy levels, but also between the available positions the electrons and holes can take in space.

Thank you so, so much. These are the best animations and explanations I have come across for physics. What I previously thought were just dull words on paper have turned into beautiful new ways of thought and exploration. You are a hero and an inspiration.

This is way better than most of textbooks!!!!

This is absolutely amazing!! I wish this video existed a few years ago when I was studying this. I wanted to point out that this electron level stacking visualization thing shown by Eugene is MUCH deeper conceptually than it may seem. Say, see some electrons "falling down" at 9:05? this is how LED works!

I had a lecture about semiconductors at university and I learned about it at school but nothing gave me a picture about its functionality as nice as this video! Really happy I found this channel.

Great video! I started watching you in my undergrad and continue to do so well into my career. Your videos help make things so intuitive!

One of the most intuitive video ever watched, thanks for this perfect explanation!

Ahhh this gets released just as I'm finishing my semiconductor module! Great visual aid to see what's going on behind the maths and models!

A very timely post, thank you

Hello, Eugene I'm happy to see your new video! And thanks for approving my translation

This video had helped me sooooooooooo much when I tried to understand this chapter at school because gravitational potential energy is something every large organism can intuitively understand and it is a perfect analogy so these animations are absolutely amazing at explaining the PN junction and transistors.

im passing chemistry because of you 😭 thank you so much for your time and energy. you've helped inspire my passion for physics more than i could've ever imagined. now im looking at material scientist grad school programs !! would love more semi conductor videos, maybe colligative property videos, thermochemistry, or similar phase change chemistry topics from a physics perspective. take care!!!

After long time I got notification of your video sir. But as usual the quality of content is top class again video is so much informative and helpful. Thankyou

The most wanted video on youtube.. Kudos your work✌👍👍

This channel DESERVES way more subscribers.

Thank you Eugene from Egypt 🇪🇬 I hope you are well 😍

You're relativity video got me hooked back in 2013

This is a very superb video. Hopefully can see more other type of semiconductor devices.

One great visualization and clear explanation after another. You sir make the most useful and efficient educational videos I've ever seen.

I love the new graphics format you've used for this video. I would definitely like to see more videos in this style. Especially a video about the different mechanisms of electrical breakdown.

Another great video. You are a genius at teaching and creating videos to clearly explain complex topics.

Thanks for such a wonderful explanation!

Waiting for long time for this. Thanks a lot.

your videos inspires me to study physics with all my heart

great explanation........your animations makes it so easy to understand such concepts❤

Electrons fill holes in energy bands and you fill holes in basic physics for engineering students who were to inmature to pay attention in the early stages of their careers, you magnificent bastard, you did it again, this is what internet is supposed to be for, thank you.

Long ago, a prophecy was told. A man with such high intellect would appear every other century for a few minutes only, to grace us with the light. Rejoice fellow men, for this day has come, and Eugene is back!

Your Videos are outstanding. Really helpful and extremely clear. Thanks a lot 🙏🏻

Thank you for the show

Great explanation and animation as always.

I would just like to inform you your channel is the only one on youtube I have watched all videos because the way you illustrate your animations is far better than the other ones.

Remember the Quantum explanation from this channel, it was awesome. glad you are back. with another great video. Keep it up

I love the way you explain, is simply perfect and detailed

Thank you for sharing another great video

I was watching videos about electromagnetism from playlist "Electricity videos in order", and all of them were like five years ago. And then I stumble across this video, that was posted only two weeks ago. I feel lucky to see it now when it is relevant to me.

Thank you this video helped me understand so much vs just looking at diagrams in the textbook.

Thanks for making this!

And these are the people who deserves respect and admiration. He fights to keep the scientific society alive. Our scientists, engineers, architects, Doctors and of course those humble works like delivery, food service, mail man, repair man are all equally useful. We learned at last that every job should be respected.

Ohh thank you so much for this video! I´m studying semiconductor physics and ill have an exam soon. Your videos are amazing, they help me understand physics and see the beauty of it. Best regards!!

THANK YOU SO MUCH!!! this is exactly what I wanted I could never visualize why the base current was always lesser in comparison to the collector current thus made my day.

Great video as always

Thanks Eugene😁

As always fantastic!

Great to see a video from you after a long time..... May your service reach new heights ... ...... It would be nice if you put more videos on Nuclear Physics.....

Even with what could be considered a solid grasp on this material. These videos are refreshing and provide a clean perspective. Thank you.

one of the extraordinary videos I have ever seen in my life.

Simply FANTASTIC!!!

Best educational video on semiconductors I've ever seen

Thank you very much for this video. It really helps a lot.

Thanks, this is an essential lecture indeed! For the newcomers as well as for the folks from the valve era. The latter ones (like me) have probably forgotten the "voltage model" of the bipolar devices and instead are dealing only with the current model. And that does not explain enough the base region behaviour. Back in the 80's they taught us valves first thus probably easier to jump directly to the PNP-bipolars (e.g. 12AX7A => AC128). Were this video available that time it would have been much easier to understand the working of a transistor, i.e. without the valve analogue. I truly recommend this video, especially the requirement for a thin P-type base region biased to conduct (at 11:00) in order to get the device working.

Love Physics. Great explanation.

Missing you, thanks for a new video. Always watches your videos, they are great. 👍👍👍

This video is a blessings for me. Thank you so much ❤

thank you so very much . was struggling to understand this topic and the visualisation really helped me ........

as a PhD student in condense matter physics I must say your videos are really fantastic. I will share the link inside physics department group. Thanks

Yay! Just when i needed a video for semiconductors! 😇 Lots of thank yous! 😍 love your videos!

Great work . I really liked it. Thank you very much.

Its amazes me every time

Thank you very much for sharing you knowledge. ❤❤

Happy New Year's to You!🙏

Great method for learning. ❤

the little animation at the very beginning helped me understand more than long documents and videos on the subject :D

Wow, this is a very usual video. It explains the n-p-n transistors very easily. Thanks a lot!

You are so excellent. We love your videos all over the world, it´s united fascinations. Greetings from Vienna.. Stay healthy and thank you for hours of beautiful physics lessons.

Thank-you so much for these videos😊

Thank you. Great video!!

This is epic that left me speechless 😍 Thanks a ton.

We liked ur videos..plz continue ur videos

Awesome! Hope you can cover Quantum Computing, Block chains, Shor Algorithms in future..

I needed this!

Finally, this is clear to me. Thanks a lot!

Thank you so much😍😍...please make more videos...

I wish I could support your channel and your awesome videos! I love this channel Never disappointed me with content! Videos like this make me feel like I've found some gold mine! Just thank you🤗

Very,very Good. More than an explanation of electronics, it is a course of english, to me ,here from Brazil.I anderstood all she said, with this measured and perfect pronunciation. thank you.

Great Video!!!

Thank you, I was just wondering how the transistor works, and actually what is a semiconductor. Amazing!

You're easily one of the most important and greatest youtube channels ever. All hail the legend 🤲

You are doing great work, ❤❤❤

These are the fundamental mechanics of physics... And I was never taught about this in school!

Nice explanation!

Best effort guys👍👍👍👏👏👏👏♥️

Three-valued logic, arithmetic, and storage would make another interesting topic.