Forward biasing a PN junction | Class 12 (India) | Physics | Khan Academy

In this video, we will attach metallic contacts at the end of the PN and provide a voltage across it. When we connect P side to Positive and N side to negative, we call it forward biasing.
Learn the next topic here --www.khanacademy.org/science/i...
Class 12 Semiconductors: We cannot imagine our life without computers today. But what makes a computer tick? What's making this technology grow at such an exponential rate? It's all due to semiconductors. As unbelievable as that might sound, altering the properties of semiconductors allows us to build these computers. In this topic, we will explore the world of semiconductors. It's a journey from what semiconductors are all the way to creating building blocks of these computers.
Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!
Created by Mahesh Shenoy

[@nagarmalsharma9992]

The best explanation of semiconductors on the whole internet, never understood this concept, but you made it really intuitive, thanks!

[@prateeksharma6756]

Sir why are they not recombining and increasing the depletion region when you are connecting it to a battery.

[@Parapresdokian]

No, you're wrong. This guy could even make ToyStory using this software.

[@suchitrasridhar5313]

This is a great video. I just wish there were more Khan Academy videos aligned to CBSE curriculum.

[@lollopes100]

Why is the diffusion current increasing when you apply a forward bias ? Drift currents means that the motion of charges is due to an electric field while Diffusion is caused by difference in concentration. When you apply a forward bias you create an applied electric field across the junction that will make the carries DRIFT to the opposite side not DIFFUSE.

[@ishakatira8650]

Doesn't the rate of recombination now increase as more holes and electrons are now moving?

[@Funchoz_learn]

Superb video quality ... This man has put his heart and soul to it

[@khushi11147]

But if the diffusion current is increasing, how is the depletion layer decreasing in size? Won't the rate of recombination increase with diffusion?

[@sircliff323]

holes move?

[@shrishmagar375]

what software are you using?

[@osamazahid715]

your lecture Answered my lot misconception, you rock the stage!

[@cradleblaze8798]

Damn sir .... What a detailed analysis of semiconductor .....Helps for jee preparation !!!!!

[@ishitachadha1786]

You are by far the best animator. I can actually believe and visualize what is written in the book because of you. Please keep making many more videos:)

[@anushkavora7815]

one of the best videos i have ever seen out there. so simply explained with the right gear, everything is perfect about it and super easy to understand

[@muditagarwal1781]

The most productive 6 mins of my day today!

[@nehapal6888]

Made me speechless... Amazing

[@ojussinghal2501]

Great fun, well explained.

[@charuprabha4534]

Man u r really great pls keep uploading more vdos on physics ;)

[@srilakshmidevulapalli6999]

Thanks a million !!

[@SIMRAN-kz5dw]

In addition to ur extraordinary teaching of physics.....ur vocabulary is excellent as well.