How LED Works - Unravel the Mysteries of How LEDs Work!

Real gem

The flat edge helps determine the + and - side of the diode?

Super🎉

I want to connect 20 LEDs that have a max of 3.2v and 20mA each. Therefore I calculate I need 64v with a 2800 ohm resistor using 120v input Am I incorrect in my calculation thinking the volts coming after the resistor will be be 3.2v and that is all I need. Will it still power up the LEDs. Or do I need to have a power source of 64v which I would like to use the standard 120v input in North America to convert somewhere to 64v. I believe most adaptors have a built in transformer.

Back to the year 2000 which i study about radio & TV, the flat side was the indicator for the anod & katod..

А світлодіод винайшов українець. Нобеля за світлодіод отримали японці.

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Nice how can I get bit

One nit: monitors are not LEDs (yet. unless you're talking about the few microLED devices on the market). If you're talking about OLED screens, then that's electrophosphorescence, not electroluminescence as discussed here.

Why aren't 10mm LEDs made with semiconductor chip and anode/cathode frames that are double the size of those found in 5mm LEDs instead of putting 5mm inner hardware in a doubly sized case? Wouldn't it be not only more powerful but would will less epoxy resin waste since the bigger case would be actually used to hold components instead of just providing bigger size but with a similar brightness?

Derive the equation of efficiency of heat engines

Excellent, well explained ,very knowledgeable session, all the best and keep it up..

amazing great work

When the electric grid go down how can I keep my electrical product working.

the different colors that LEDs can emit, and the different applications for LED technology and how they work.

Lovely vid.

I bought two types of LEDS -
1 = classic model - 2 pins = 1.2v ?
2 = modern ? model - 4 pins
handles 3V - holds red , green, blue
red is not that strong, green is strongest
blue is stronger then red
red uses more mA

Sir, please make a video on how radios work, how does the transmitter sends the signals and how it catches it?