It's been a day since I wrote this "wisdom". During this time I managed to make a new inventor's story and just published it - electrical.codidact.com/articles/279016.

@Circuitfantasist I very much with you that you must know KVL inside out before you claim that you understand electrical circuits. But there are other laws you also need to understand thoroughly as well, say the three guys below:

And if you need to dig deeper to know the laws the govern the components that make up the circuits, namely: R, C, L, so you need to know the guys at a deeper level, eg Faraday, Lenz, and so on. So we come to Maxwell's who play with Electromagnetism, and Schrodinger who play with cats. Of course we have left superficial and shallow EE stuff and hit physics, and still deeper, mathematics, .. Of course we are meeting Einstein and Hawkin, but there is another lady we need to know.

If you don't know this lady's stuff, you cannot say you know the origin of inductor's back EMF.

The time has come to introduce this lady:

Thanks for all the resources. I have contact with our IT students only in the initial courses where I introduce them to basic circuits. Then I lose touch with them. My disciplines are not much desired by them; they want to deal with software. Such are the times... and there is no developed electronic industry here either (there was... but now it is destroyed). So they emigrate abroad en masse...

BTW I took an hour today to watch this RSD movie - youtu.be/05ffk8bJdg0. This guy gave me pleasure because he made a live demonstration of the operation of the inverting amplifier that I have been using since the 80's. I think I have something to say to these guys (he and Dave) as long as I can make contact with them. I look for such people on the web ... who understand circuits ... but I still can't find them ...

Then I began watching the Dave's movie about op-amps - youtu.be/7FYHt5XviKc but I didn't last until the end, I'll watch it some other time. What he tries so hard to explain (inverting amplifier) ​​is very easy with a simple demonstration. Two variable voltage sources (the one is the input voltage source, the other is the op-amp output) of opposite polarity are connected to each other through a network of two resistors (R1 and R2) in series.