How Diodes Work - The Learning Circuit

The depletion zone of the n side if the junction should be positive charge but you label as negative.
Unless you mean the n material being a source of negative mobile charge carriers. But after they diffuse to the p doped material the n type material near the junction takes on a positive charge.
Similarly on the p side of the zone a negative charge develops locally.
The crystal as a whole is still electrostatically neutral with local effects isolated to the junction.
The charges are not homogeneously distributed thru out the crystal but rather accumulate in equal amounts at the p n junction and so cancel out so as the crystal to remain in electrostatic equilibrium as a whole.
That's my understanding at least.

I just watched to understand barrier potential and got disappointed

nice explanation

Amazing explaination! Thank you!

There is another correction besides "opposite charges repel", while performing reverse bias anode is depicted as +ve terminal later on while performing forward bias anode is depicted as -ve terminal.

woah . . d i - o d e s . ! !

Karen ,if doping of pure silicon will cause reduction in the physical strength of silicon, especically in p side.beacuse p side have holes.will it create weakness.please reply. Iam doing a resarch in electrical field so, please give proper answer . Its a request. Iam a engineering student.age 22

Thanks for the good explanation!

What about zener diodes?

Excellent description and visuals for the interactions of N, P and depletion zones. This, and describing in terms of electron flow has been a massive help with understanding diodes and transistors.

she attracts me like an electron

I do not understand why this video shows electrons bonding to each other (how it was drawn on the whiteboard) or what they are saying about the “depletion zone gains enough negative charges to repel the positive charges” as opposite charges attract eachother. Please explain

thanks teacher

Best teacher💯

this was aweful

Ok. One thing I deem extremely important. A simple vacuum diode. If you were to closely relate the Sun and it's radiation as being either A: The cathode in this device. Or B: The anode in this device. Which one would it be? Also. Likewise for the Earth. If you were to relate the Earth as either A: The cathode. Or B: The anode. Which one would the Earth be? Knowing a vacuum exist's between these thing's. Knowing a gas does exist between these thing's. One other thing I must ask you student's. How much charge must a capacitor be encumbered with before it start's to radiate visible light? One other thing. How would someone calculate the capacitance of Earth's central core? And what is it about the SUN that makes me believe that the charged particles emmitted from it are INSTANTLY TRANSFERED to the Earth's magnetosphere. How fast does a free electron move in one direction through a vaccuum space?

She is the only few Karen I would want to learn from.

Mohawk college wale 👨‍🎓 students.

Since diodes lower voltage - would they make better voltage dividers than resistors?

A Karen that we can all appreciate :)

many thanks! 👏🌼

💙

Love the "two friends mad at each other" analogy.... Thanx!

Gaurav kakkarr 14

for the people who don't understand, write down little short notes on the information said in the video . it is a great way to understand and process the facts. thank you for the really amazing video.

When junction was formed and positive charges were crossing the junction so why they stopped?
Why don't positive charges go to join the next negative charges in the remaining part of the diode?

better then 30min of real school no shit.

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You're a lovely demonstrater with a very magnetic personality! Thank you so much for your contributions!

Nice 👍

Wow a intelligent woman with a sense of humour.
Hello sister from UK, Wales. 🙄

There will not be a clear "basic electronics" video possible, until the wrong electron flowing convention is resolved! This is a major problem!

crisp and clear!!

Backword conected diode works as a capacitor.

This makes sense! Thank you!

I enjoyed your video, very informative. Although your video shows "electron flow", I can see how "conventional current " might be also used to show the current flow since the schematic arrow (diodes and transistors) points in the same direction. I can also see how " tech people " might be passionate on which is more correct.

very very easy method

best video

How does capasetor work

It was good up to the point where opposite charges 'repelled each other'