How does an Amplifier Work? (Class-A) 

Same but half year ago

Yes make all class videos and upload soon

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Yes please 🙏🙏🙏

This is a good presentation & I was far behind in my class that time, now it's well comprehended

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Thanks you😀

Thanks for the tips! I will try.😀👍

if either of you feel like being informative, why do people use AC wallwarts and rectifiers/regulators to produce dual rail PSU for opamps? from studying theory (i have yet to blow up my parts) it seems that this transistor amp can boost the voltage, then a resistor divider can provide a negative rail without ripple. no one ever answers my question why people use a circuit that introduces ripple instead.

Do you make logos ??

@@taufeeqkhan2629 No my friend. It's personal hobby base on my name

Glad it was helpful!

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β (beta) of a transistor is the gain or amplification of the base current to collector's current when the transistor is in the active region. And, A transistor is made up of two PN junctions, an emitter junction and a collector junction. The active region is when the emitter junction is forward biased and the collector junction is reverse biased. So, beta depends on materials, doping, construction of the transistor.

Готово! Спасибо за напоминание. Я вообще о них забыл.

@@ExplorerStuff да пожалуйста)

Lets say, Emitter resistor is 1k ohm (Re = 100 ohm). Now, when 50miliamp (I = 0.05 A) current flows through Re, by Ohm's Law, voltage across Re will be V = I*R = 0.05 * 100 = 5V. So, if one end of resistor is grounded, the end will rise to 5V, so that, 50 milliamp of current flows through resistor. If there was no Re, and when the transistor turns on (Assuming zero resistance from transistor), Rc will be connected to ground, thus 0 V at the output. But if there was Re, The maximum Rc can drop to will be 5V. The voltage drop depends on current, so as current increases in Rc, Rc tries to pull the output low, now the same current flows through Re, and Re tries to push the output high, thus providing the negative feedback.

@@ExplorerStuff thankyou your explanation was helpful

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Hi, check us out for engineering interview related questions. We'd love to hear your feedback! ru-vid.com/show-UC7h3PROcX7Zgx00alQokJ-w

They use magic...

Yup! Working on them.👍

I will try. 😀👍

In the following videos

Class H..... I will see if I can fit it somewhere. 👍

@@ExplorerStuff давай, у тебя все получится :)

Plz help me

In short, Transformer has a coil, which stores the current (energy) when it is more and releases when it is less, thus reducing the losses.

😅🥳

Voltage range.

😂😂😂😂

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