I *finally* understand impedance. Thank you. This is probably one of the best videos I've ever seen on KZfaq.

A truly excellent explanation of inductance. You always know when you have a good teacher when you come away from something knowing you've truly understood the subject.

Brilliant! Ditto all of the complimentary comments. This particular point (reactance) has eluded me since barely passing my electronics class 40-some years ago. I get it now. AWESOME. Thank you!!

Excellent presentation of resistance, impendance and reactance. Thank you for the time being spent on that thing

i don't comment a lot but best explanation of impedance better than my professor explanation.

I didn't understand these concepts well for months, but after watching this video, I understood them very well Please make more videos. You explain very well😍

Yes. very nicely explained. I hope people who are new to impedance learned something. I definitely learned how to keep things simpler when explaining :D

Great video and explanation. I especially loved the phase angle from the triangle.

This is the best video I've seen on this topic. Great examples and demonstrations. Very well done! This is the first video I watched of yours and can't wait for more. If you need ideas I would love a detailed video on CTs. Thanks!

Very clear explanation! I jumped into electronics as a hobby a few years ago. I've probably read all of this at some point. I even have an LCR meter and know that reactance can change with frequency, but i never had an intuitive understanding of this until now. Your description and visualizations really helped me tie it all together. Thanks!

This is amazing, very clear explanation

i love your teaching style , thankyou very much

Brilliant! This video could not be improved upon. I wish you had videos explaining everything related to electronics! I have read and read and read about this but until now, I never understood it. Thank you!

Great vid Paul, nicely explained ! AC Theory did and still does my head in :( one thing that's useful to know and sticks in my head from college, looooooong time past, was those little formula's like V/IR and relevent here is ICE (Current Leads Voltage In A Capacitive Circuit) and ELI (Voltage Leads Current In An Inductive Circuit) Enjoying your Vids. Les

Great Explanation!

paid lecturers at a russel group uni can't explain this topic as easily as you. bravo!

Great! Fantastic that you can get all that from the right triangle! I learned a lot from this, cheers!

I love that kind of content. Thanks!!

16:00 You actually can add the resistance, capacitive reactance & inductive reactive together just like a normal series resistance circuit - which is why they're measured in Ohms - *BUT* it's only valid for a sine wave of a specific frequency, which is the one you specify when you do the maths to calculate those reactances in the first place.

Nice explanation, thank you!

Thank you for the video, very useful but what if a capacitor is in parallel with an inductor? How calculate the impedance?

Thank you!

Thank truly appreciate it

so easy to understand, tks sir

your explanation is splendid. 1 issue though, the final formula Z^2=R^2+(Xl-Xc)^2 is not correct from a mathematical point of view as you are not exponentiating the difference of Xl and Xc but differenciating Xl^2 and Xc^2. Thus I belive the formula: Z^2=R^2+Xl^2-Xc^2 is correct. I don't want to go out as a nitpicker of your great video just think it should be out there if anyone goes out and uses the formula mentioned in the video as they will get a horrendously inacurate result :)

Thanks for your video, I have a much better understanding now of Impedance. So I'm wondering about many power adapters used today for laptops, phone chargers etc, they don't use transformers like in the old days, do they work by efectively increasing mains 230 volt frequency and then using impedance to limit the available current flow?

Any reason why you used the inverse sin function when it appears the generally accepted function for this application is inverse tan..

Great teaching style. I got a question for the formula for the impedance: Why is the capacitve reactance lowering the total impedance? I understand that it responds the opposite way as inductive reactance to a change in frequency but is it not still adding a part to the total resistance and should therefore be still with a +? For example at low frequencies capacitive reactance is high and inductive reactance is low, but both are >0 so increasing the total reactance. Where does this "pulling factor" come from that is lowering the total impedance as shown in the impedance triangular and giving the capacitive reactance the (-) sign? thanks a lot

I always hated that image of volt pushing amp through, it should be volt on the other side taunting amp with it's middle finger :P

Thanks i dont find any of these anologies helpful because they break down right away when you limit an LEd's current, my first activity playing with electronics, and I cant get over that no one has a real explanation why they say current flows from one side or another but expreiment shows it doesnt matter. If it flowed from negative to positive then your LED should break if you put a resistor on the positive end. And im just supposed to accept this model that doesnt agree with experiment? Im still willing to believe it flows from either positive or negative and something else is going on we just dont have the resolution to see, say a few electrons get through but not enough to break the LED, then after they get resisted on the otherside they send a message to the majority comming theres resistance and they react. Maybe this is the inductance? Or all the electrons are connected somehow, so minority scout electrons up ahead can instantly send messages back to the majority. Its sort of like how lightning starts from the ground up idea. It needs a path first, but something has to scout that path right? ... Alphapheonix sort of shows this with his "path of leaste resistance" video where he shows the heat signature of electricty going through metal and i think the conclusion was some minotiry electyrons take a random path before the majority settle on the path of leaste resistance. Same could be happening with led's and resistors. But im starting to think Veritasium was onto something about electricity doesnt actually flow through wires but in the magnetic field around them.

Thank you!