Semiconductors 2: the p-n junction (Higher Physics)

[@heck3371]

I literally don't know what I'd do without these videos. I finally understand the forward/reverse bias stuff! Think I'll be watching these constantly for the next few weeks! Thank you so much for helping us out!

[@MrSmithsPhysicsonline]

Good idea - get the viewing figures up!

[@cuneytarkn8670]

I liked and subscribed-how could I not? This is one hell of a great, no-BS, to-the-point, and clear series of videos on semiconductors, pn-junctions, and semiconductor devices!

[@MrSmithsPhysicsonline]

True!

[@李玉皇]

I feel so lucky to find this video. It explains concepts so clearly and help me a lot! Thank you so much.

[@MrSmithsPhysicsonline]

Thanks for the comment - very nice of you to say so.

[@tanzeelaamin9631]

Found you later in life. People like you are blessing. Thank you

[@MrSmithsPhysicsonline]

Thank you - happy to help!

[@SixStringsAndBeyond]

Hi Mr.Smith im studying classical and quantum physics in october these videos are tremendously helpful thank you

[@MrSmithsPhysicsonline]

Good luck with the Physics!

[@PriyanshulGovil]

awesome man, you explained in 5 min what took me 2 hrs to understand from ncert

[@MrSmithsPhysicsonline]

It took even longer to research and work out how to explain it!

[@ellenc9699]

thank you so much for theshort and precise explanation, it was quite easy to understand and digest.your videos are amazing!

[@MrSmithsPhysicsonline]

Thank you! Glad you like them.

[@빙유-z4p]

Thank you for the video!! Im a high school student in Korea and I had some difficulty on the diodes. Your video helped me understand it😊 Thank you so much👍

[@MrSmithsPhysicsonline]

Glad it helped!

[@DeepakSharma-pb2tz]

Nice Explained. Thanks for making the animated video. Please make more videos.

[@MrSmithsPhysicsonline]

Thank you - I'm editing some as we speak. I'm very busy during the lockdown but managing to find time to make videos. Glad they are helping!

[@uttamkumbhar8106]

Thanks 👍👌👌👍 tomorrow is my exam so I think definitely it will help me once again thanks a lot so and I'm an Indian but your pronunciation and conversation is so easy understand.

[@MrSmithsPhysicsonline]

Hope things went well with the exam - all the best!

[@DeepakSharma-pb2tz]

Nice Explained, Thank you. Did you make lectures on Transistors Sir?

[@MrSmithsPhysicsonline]

Only on transistor switching circuits, not on the operation of transistors. Glad you liked the video.

[@T어썌T몸빵]

진짜 이해가 너무 잘되네요 감사합니다

[@MrSmithsPhysicsonline]

도움이 되었다니 기쁩니다. 당신의 의견에 감사드립니다.

[@Kawhisexual]

@@MrSmithsPhysicsonline 미스터 스미스 가 한국인이였다니..... :O

[@moreyoutube3337]

Thanks will you cover all the topics for higher physics before the exam ?

[@MrSmithsPhysicsonline]

Most are already covered, at least with past paper solutions videos. I'll be trying to get out some more on the topics not done such as redshift and the doppler effect. All the best with your exam!

[@moreyoutube3337]

Thanks !

[@moreyoutube3337]

Question: I have not started my physics revision yet! Do you think i still have time? i have a month so i think i can cover all the topics in that time. Is it enough time to alteast get an A? Im just kind of nervous aha

[@MrSmithsPhysicsonline]

The exam is on Tuesday 8th of May, so you've got over a month. Good that you're aiming high - make up a revision timetable and get started so that you can get the best result for you. The SQA apps are good for helping you with this and they have lots of helpful advice too. Go for it!

[@moreyoutube3337]

Thanks for the advice!

[@bossyzedan5330]

Awesome

[@MrSmithsPhysicsonline]

Thank you - glad you liked it.

[@loch4551]

this is great thanks got a prelim tomorrow and forgot this

[@MrSmithsPhysicsonline]

Glad it's helping. Good luck tomorrow!

[@supertastysupernoodl]

this really helped!

[@MrSmithsPhysicsonline]

Thanks - it's a tricky subject which isn't covered well in some of the summary books. Took me ages to study it and work out what I wanted to cover - all the best!

[@ahmedkhalil8193]

Fantastic Thanks alot

[@MrSmithsPhysicsonline]

Thank you - glad the video helped.

[@epic6137]

How come when a positive hole is filled by an electron in the depletion layer, an overall negative charge is left? Why not neutral?

[@MrSmithsPhysicsonline]

Only in that part of the depletion layer. The electrons will diffuse from the n-type to the depletion layer in the p-type. Before this, the p-type was electrically neutral - it may have one less outer electron than silicon but it'll also have the same number of protons. Since the electron moves into this region (which was previously neutral), it's now going to be negative.

[@epic6137]

@@MrSmithsPhysicsonline Thank you so much for the help!

[@henairene8885]

Good class

[@MrSmithsPhysicsonline]

Thanks you!

[@jabordewijk]

love the accent!

[@MrSmithsPhysicsonline]

Fit like min?

[@LatifKocak]

cheers

[@MrSmithsPhysicsonline]

Thanks for watching!