Tutorial: Electrical impedance made easy - Part 1

[@chrisparkhurst5158]

I have always had an impossible time figuring out capacitance and inductance on my own. I understand transistors and vacuum tubes so much easier than inductance and capacitance. This video is the first time I've seen anyone put it in practical terms instead of mathematical theories. I finally have some understanding to start building on. Thank you!

[@AtomicElectronCo]

When teachers drop their ego and say to themselves "How could I understand this if I only had basic knowledge?" rather than "I learned it that way and so will they!" it is a fantastic gift! Thank you for helping me understand what "impedance" is!

[@veronicanoordzee6440]

You're right, but empathy is a hard thing for a lot of people.

[@berryj.greene7090]

Spot on with that comment. It's what too many teachers do. What they're good at. Their gift is to retain other people's knowledge. They might be less able at passing it on as their gift is to copy. Not much original thought. Not much deep understanding. Just a memory. Autism! We applaud and elevate autism by operating this way. We have to stop doing that. Over...……!

[@SuperMadpom]

Best teachers I've had have been folks that have come from industry and worked on the shop floor and therefore seen theory in practical applications. Worst teachers have been academics with degrees and PHD in teaching who thought by reading up on a subject they'd be able to teach it. As mature paying students we had a teacher kicked of a course for that - complete lack of knowledge outside of what was written in a text book meant he had no ability to answer questions that smart students where asking in an attempt to understand the subject.

[@KendallVance]

exactly!

[@artmatthew1]

I was thinking this too.

[@vital989]

"Impedance is just a resistance that depends on frequency" - finally a clear explanation. Thank you and keep up the good work. +1 subscriber

[@bigfoottoo2841]

vital989 No, No, No, The reactive portion of an impedance is not like resistance at all. Reactance does not consume power. It is energy stored in a capacitor or inductor from an earlier time that is opposing new energy that is being applied at a later time. A simple example would be 2 batteries connected in a circuit to a light bulb where one positive terminal is connected to one side of the bulb and the other batteries positive terminal is connected to the other side with both negatives connected together. The energy in one battery stops the energy from the other and the bulb does not light.

[@harveykeller5646]

BigFoot Too many

[@88njtrigg88]

harvey keller "to many?" What is your point.

[@MrHBSoftware]

i understood his point Nathan..."too many" words or too much crap is what he means...probably not a native English..i am not either......the oversimplified explanation is a good route for people to fit the definition in their heads and allows them to further get deeper in the subject...if teaching all the crap at once like BigFootToo is stating and then adding the math, people get overwhelmed and understand shit about the subject....this is a common mistake with almost all teachers..they have deep knowledge on the subject but ZERO knowledge on how to teach... For example some years ago i was starting on restoring vacuum tube equipment and was struggling to understand some theories...i had to read lots of books and watch videos until i realized the "miracle" that going out of a tubes anode there is dc voltage and the ac signal riding on it on the same conductor...Nobody explained that on these simple words.....nobody stated that AT ALL....before, i looked at schematics and was puzzled to see +200v entering on a point where it was supposed to be a 10v ac signal exiting..... i also could not find the waveforms on my scope because they were "raised" by the DC offset

[@mvd2161950]

8:35

[@Mirandorl]

Your opening comments about how engineering is taught could be the topic of an entire channel. Throughout my university time I always felt this way, and so did the others in my class. The amount of times we would have lectures by professors and be confounded by derivations, only to have a tutorial class with a phd guy who would say "look, ignore all that, its just this" and explain it in physical terms. The whole class would just go "why didn't Prof. Confusing say it like that? That's simple". Then the maths would make sense and build on it. You still learn it but it takes half the time and gives a much deeper intuition.

[@darwinthompson391]

Absolutely agree.

[@DumbledoreMcCracken]

I'm convinced there are people who are uncomfortable with the physical world, but are entirely happy in the axiomatic world of mathematics. They can only speak the language of mathematics, and see only the mathematics. Mathematics is only a language, in the same way Swahili is a language. Someone could explain the physical world to you in Swahili, and eventually you'll understand something, but it will be painful. If you think in pictures at all, you need something physical to relate to. Even Richard Feynman, the Nobel prize-winning physicist, thought in pictures

[@berryj.greene7090]

All to do with tradition. The error of intelligence assessment. We have to change this. Grandstanding & parading a gift for memory is NOT teaching is it? Nor is it actual understanding. In many instances (maybe all) the maths & formulas came second NOT first. Yeah of course they help but lets get a grasp of why they're needed first - then work out the form they have to take. Then we have understanding.

[@Decrosion]

TheDroidBay wouldn't be surprised if it was intentional tbh

[@richardcranium5839]

the harder you have to work at something the longer you'll remember it. its human nature. sometimes its best to get everyone confused and baffled then back off and take another angle. something easily learned is something easily forgotten

[@egertondidikallay9449]

Honestly you are a Masterclass. I have just realized something I never thought about my entire life as an electrical engineer. Thanks a million and God richly bless you.

[@QUBY-101]

your a walking legend i will happily donate my money to you i wish you made more videos

[@wb5rue]

Great video! I learned a different analogy for the capacitor. Think of it as a tube/chamber with inlets at each end. In the middle of the chamber is a plunger that can move back and forth. When water enters one end the chamber fills with water and the plunger is pushed along until it reaches the wall at the other end and it stops, the capacitor is fully charged and no more current/water may flow (assuming a perfect seal/capacitor which we know doesn't exist). When the current changes direction the pressure (current) pushes the plunger the other direction until it hits the other wall. This is repeated as the AC current flows back and forth. The value of the capacitor can almost be thought of as the volume of the chamber but not quite. Keep the videos coming!

[@Wei-HsuLin]

I love this analogy!

[@Nicedesk]

Thanks! Been working with electricity for 30 years for audio applications. Thanks to you I finally understand Z.

[@klmkt4339]

This was available from 12 years ago

[@kevinkane7667]

Such a crystal clear explanation - brilliantly done.

[@lekoman]

I absolutely love that there are people on KZbin like yourself who are working to contribute to the layman's understanding of these things. I can watch videos like this for hours. Thank you so much for taking the time to record, explain, and edit all of these for us. It sounds effusive... but it's people like you who make us all smarter, and the world a better place.

[@frankpitochelli6786]

I subscribed, I've been in electronics for 40 yrs, and your explanation of impedance actually taught me something, when I was taught impedance theory, it was always made more complicated than it had to be. Ty for your explanation and taking time to explain it properly.!

[@dproduzioni]

As a teacher myself, I love how kind, efficient and poetic this guy is. Another job well done! Keep up the good work!

[@formosabrowning3539]

Its one of the best explanations I've witnessed in my life. So many technicians do not grasp this concept of Xc and Xl

[@JusticeAlways]

I just now fully understand it...impedance has always been a bugger for me. April 7 2023 👍

[@tabliqatchi6696]

You are a gift to the humanity, I always read those academic definitions and scratched my head, but this video was a GEM!

[@vinicus508]

Bro, this video is gold! I was on the verge to understand impedance fully before and this video just nailed it for me. Seriously, a 12 year old video with higher content quality than a lot of recent videos.

[@cbranalli]

as an electrical engineer who has pored over these formulae for very many hours - i an very pleased to hear your lucid and elucidating explanations of what's going on and why.

[@els1f]

What you said in the first 30 seconds is 100% accurate! It's like so much of the school curriculum is designed to destroy the joy and wonder that motivates the internal desire to keep learning. The endless hours of practice problems NEVER forced an idea into my memory longer than to take a test. But, when a physics experiment explained the concepts of an occurrence I took for granted, I would remember it forever.

[@GospodinJean]

That is called Prussian education. Read about it. A system designed to create "a flock of timid and industrious animals, of which the government is the shepherd"

[@moussafiradil1700]

9years later this video is still as helpful as in J1, I can only imagine how many students/ hobbyists you've helped across the years... thank you very much in the name of all my comrades !

[@JusticeAlways]

Another 2 yrs later from your post...this presentation taught me the fundamentals of impedance! LoL! I wonder....somebody 25 yrs from now have the same experience? 😄

[@craigwall9536]

At last: a tutorial presenter that speaks well and clearly, is devoid of annoying verbal tics, hides nothing, suppresses his ego and gets straight to the point without showing off or avoiding relevant math. This is probably the best tutorial I have ever seen and ranks with only a few others for usefulness and clarity. Congratulations. I'm now a fan. I'll be searching you out and watching everything of yours I can find.

[@arturgheorghita4157]

Oooooo man, I have no words to thank you, 2 years I tried to understand what you just explained in few minutes, god bless you.

[@sa4997er]

Thank you so much to explain a difficult topic in such a simple way. A lot of experts are not good teachers. I am amazed that I found your video after 12 years it was poosted. Amazing. Thank you again.

[@Yorumcu63]

Best Reactance and ımpeance tutorial video in KZbin . Only one LED ,2 resistor ,one capacitor ,one wattmeter and 1-2 page and great knowlodge Thank you

[@mikeschotte9480]

Boy, you’re taking me back to 10th Grade Electronics. Shocked at how much I actually remembered, 39 years later.

[@arizona111]

Superb! Never had a full grasp on impedance. In one second you cleared it up! "Impedance is just a resistance that depends on frequency"

[@grincherick]

I really respect people that take their time and invest it to help people like you do. Thank you very much.

[@circuitdesign]

Nice vid. I have an MSEE in analog design and work for one of the top semiconductor companies in the world and have 20 years industry experience. I still learned a lot from the video. Great explanation. I wish the professors in college took this approach of looking at things from a practical side first, then building the math concepts up around that. The knowledge sinks in much better.

[@berryj.greene7090]

Look how many comments are praising this presentation. It just demonstrates how wrong it often is.

[@damirdze]

What is exactly that you have learned from this presentation? ( After 20 years of the experience with electronics)

[@martinmartinmartin2996]

Diodes in a power supply are often connected directly to huge capacitors (10,000 uf) the in rush current can burn-out the diode if the a low resistance transformer is turned ON; with the the diode connected to the transformer AFTERWARDS !

[@JusticeAlways]

@@martinmartinmartin2996 Oops!😄

[@keyboardjedi]

Hands-down the BEST explanation of multiple (closely) related concepts in clear, concise form. I thought I understood the impedance concepts, but this has expanded my knowledge. +1 for the practical demonstrations that serve to convey these difficult concepts in a way that is easy to understand. As they say, a picture is worth a thousand words. Thank you.

[@VahidBehravanVahid-Behravan]

Turning a LED with Ac was my first chalenge which I tasted as I start with electronics, you made it so clear for me, I've learned a lot. I wish to see your tutorials continiously. Just give your amaying knowledg to the world, because that one of the things you do just perfectly. Thank you!

[@tatterdemalion898]

I am rewatching this vid after some years, cause i need the info for a quick project. This and part 2 are gold on the internet! Thank you again for sharing this info!

[@logancapes]

After not using these calculations for about a year (due to being lazy and just using simulations) I realized I was doing something wrong when trying to work a problem out by hand and could not figure it out. Turns out its the Z=sqrt(x^2+r^2) and not just Z=x+r. You are a life saver.

[@johneagle4384]

11 years in the future and your tutorial is still super! Thank you.

[@erin19030]

I must say ,a very clever demo. I taught for years but your approach never occurred to me. For some of us electronics came easily and the old methods of teaching were good enough. However we were deeply involved in mathematical modeling too. Math was a language we understood well and all physics theories were explained through math. We referred to that inrush current as surge current.

[@vsmart5744]

Incredible teaching! He left no doubt about what is impedance. This is the first video I've watched from his channel. I think I'm going to be scientifically enlightened after going through his channel and watching his videos. This is what 5 star teaching is.

[@videogametips5604]

Best explanation of impedance and reactance I've ever heard!!!

[@adebayotinuoye_793]

This is the best explanation so far. Impedance is resistance that depends on frequency.

[@ECOMMUSK]

I have been learning it backwards in class. This is really good reinforcement for what I had to learn the hard way in labs. You can never know enough. Thanks!

[@u0000-u2x]

I get happy when I search for a topic and I see you've made a teaching video :)

[@Eldser]

This is by far the best explanation I've ever come across for impedance!

[@Samrajel]

Whole water pump analogy made me understand multiple things at once. Thanks mister!

[@52Warlock]

Now hooked on your videos. You do such a professional job of presenting the topics without being a know-it-all and talking above the students heads. Excellent.

[@CaesarCapone]

This guy's channel was my favorite. Being also subscribed to Applied Engineering, I had wondered where A. SCIENCE has gone. I didn't realize his channel has been around for this long!

[@mohammadmoinulhaq2501]

Wow ! The mystery of many days just dispelled in 16:07 minutes ! Thanks a lot for such tremendous tutorial. I earnestly hope you will continue making lot more contributions like this. Just wonderful work..

[@dumeinar]

This is really good. So far the best basic description of impedance I have encountered.

[@BPantherPink]

Finally understood in-rush limiting resistors... THANK YOU... EXCELLENT explanations with a very soothing voice ‼️

[@andymouse]

Helpful ? are you kidding me ? it's bloody marvellous Sir...….Capacitive dropper circuits, reactance, impedance all-in one beautifully presented and totally understandable video..……. Applied Science, this isn't, bloody poetry that's what this is, wow I love you ( and I'm a straight guy!).…….…… Pease more! then some more...…… repeat ad infinitum.

[@DigitalAndInnovation]

I have been trying to find this video! I watched it maybe 10 years ago and it was such a great demo!

[@ChrisWilson999]

Once again you astound me. I've never heard a good explanation of impedance before and you made it simple! I'm guessing that's because you're the only person I've heard explain it that actually understood what you were teaching. Superb!!

[@berryj.greene7090]

Absolutely excellent! No quibbles. Look at the good comments you have attracted. Schools must be getting this wrong too often. It needs a re-think. No more grandstanding and job justification type teaching. No more memory men presenting things with no understanding.

[@Mrhvac]

This was the absolute best explanation of impedance that I have seen. I think I got it but I am now on to part 2. Thank you.

[@VerilyRude]

I find it neat to be tutored by an 11 year old version of you. Thanks for all that you do for us !

[@professoreggplant9985]

Your end note was revelatory. I've reviewed the same things such as this since I learned it decades ago and you gave me another 'a-ha' moment here on inrush currents that just never clicked before. Thank you!

[@dajapester]

Absolutely fantastic explanation. Succinct & taught from the problem you want to solve first, then the explained solution. Thank you for your great work.

[@Nickademus77]

Can confirm, LEDs explode when plugged into an outlet. Christmas lightbulbs, however, tend to shoot across the room.

[@michalob21]

Lol

[@taunteratwill1787]

Saw the movie about that "christmas killer tree" awesome!

[@godofplumbing]

Great, now I have to try it.

[@berryj.greene7090]

Ha! Ha! All you need to do now is come up with a peaceful use for your discovery! We will need formulas for trajectory and range!! I can provide the targets!

[@DispennetteArtworks]

🤣

[@TheManzico]

Just want to say Thank you for this clear concise explanation of circuit analysis!!

[@larrykent196]

Teaching from the practical backing into the math, well done. Thank you for the video. You inspire others and everyone learns. Any insight is always worth the time. Cheers!

[@murdoch817]

Nice, your making a potentially complex topic very easy to understand. Much appreciated. Keep'em coming.

[@jpfo1776]

Very nice presentation - enjoyed as a good refresher! It is many years since I did much active circuit building. Thanks.

[@m8onethousand]

Nearly 10 years later and getting my mind blown with such a clear explanation that makes perfect sense.

[@otakucode]

Thank you very much for making a video that addresses pretty fundamental electrical ideas. I'm a programmer and I understand computers down to the level of logic gates, but have always had trouble with circuits but have always been interested to learn. You're quite a good teacher and going from practical to theory rather than the other way around seems to have been a great idea!

[@OzModIaZ]

Finally, a video about impedance that is simple and easy to understand. Thank you very much for your contribution sir!

[@willyrivero470]

Finally a real clear explanation. I get it so much clearer now! I'm a happy and satisfied subscriber. Thanks so much!

[@DirtyAssa]

Hey That's really great! You are the Super Man for me today! I'm searched to know about the impedance but not found yet! Now I understand little how the capacitance react and make impedance changes! I don't understand yet all but I know you schematic count frequencies voltages and other values give many answers to me when I handle those in my mind for a little while! I'm only a guitar player who looking for all the people make many shows with me and also audio electric! I push thumbs up! Assa!

[@warrenvanwyck2765]

Great combination of theory and actual laboratory demonstrations -- a welcome contrast to the endless chalk talks.

[@Gmtail]

Your video made the light go on in my head. It's been many years since I was in school and learned about reactance, however I couldn't quite understand why I was doing it. Thank you for the ah ha moment sir..

[@opitts2k2]

BRILLIANT!!! Best darn tutorial tube on this topic yet!!!

[@lucadelaat8837]

Finally someone that can give an intuitive explanation! Thank you!

[@twlson49]

This guy is excellent teacher and does excellent videos. Keep it up dude. Love your videos.

[@hugocapparelli1253]

Man! I love how simply you explain this concept. Thank you!

[@fragglet]

Went through a whole CompEng degree years ago and never understood impedance. Finally a clear explanation. Thanks!

[@stupossibleify]

This video has everything! I was always confused by impedance. And you've also explained how low voltage equipment can be powered from the mains without a transformer

[@debdootkumar4832]

Best explanation of impedence I have ever got.

[@ilgnsogut3715]

That is a perfect explanation. Practical, handy and a perfect way to teach. Love that. Thank you very much.... Keep it going.

[@liamthompson9342]

Super helpful video. You're absolutely right, I've read technical definitions numerous times but I wouldn't have been able to construct this circuit which I now understand.

[@Mr.M1STER]

Great video. Very informative. I like the water/bucket analogy for the capacitor. Very good.

[@wangarooi]

impedance is just the combination of the pure dc resistance and the ac resistance...effortlessly explained one idea flowing into the next.

[@WarghostAlpha]

Wow, great video. Very informative and covers a lot of different engineering basics. I plan to rewatch this video about 20 times until this all sinks in. *grabs some popcorn*

[@wa9kzy326]

Nicely done, young man ! Although I am intimately familiar with what you're doing, you are to be commended on the most informative and practical sequence you've used to put the pieces together, namely, smoothly bridging from a known--ohmic resistance--to capacitive reactance. The respective wattage calculations were icing on the cake. I suggest that this is far more instructive than most people realize. Thanks a lot.

[@JerryEricsson]

Cool indeed. I love learning more and more about how electrons behave in circuits. The only problem is, I am rather sleepy, and dozed off, only to awaken for the end. You see yesterday we buried my wonderful wife, who lost her battle with cancer a few days ago and without her beside me, after 51 years and 4 days, well sleep does not come when it should at night, my mind races from our first words when we met to her last words to me a couple days ago. At any rate, thanks a million for the info and the wonderful bit of sleep I really needed that.

[@ec11368]

Thank you very much for all of your effort and your precious time to show things in practice. I really appreciate it.

[@gregsuarez5205]

So nice. I absolutely love your teaching style. Starting with example and working backwards towards the formulas really helps me ‘get it’ . For once I can say “ I understand what’s happening “ and gives me some areas to further explore . Thank you so much . Thumbs up and subscribed!

[@bassboy2947]

Wow. That was presented really well. I'm 3 years into BSEE and have only seen the hard math first - not the practical application first. This seems to be a much better approach.

[@tulius01]

Thank you very much for this tutorial it helped me quite a lot to understand impedance. I'm currently preparing for my Ham Radio license exam and your video made things easier for me, thanks again.

[@pfabiszewski]

The best video on this subject! As U said - most people talk about it backwards.

[@tigerseye73]

Great presentation. Was taught electronics years ago in Navy, but you have a way of making this much easier to understand.

[@vex9596]

This video is pure gold. Very clear and on point, thanks!

[@ShajeeJurangpathy]

Dude you rock!! Stuck on this topic for months now... so much better now that i understand :D

[@ThomasDwyer187]

Thanks, Bromigo. Best explanation I've ever heard. -Thomas the Engineer

[@forrestbaer]

Wow this finally did it for the, the a-ha moment I've been searching years for.. thank you!!!!

[@KendallVance]

Wish I would watched this before thing turned into a mathematical abstraction in my brain. You are right about it being taught backwards. I was about to ask you to talk about power-factor, since the KillAWatt can measure it, then you said that is in part 2. You covered everything! This short vid brought the whole thing together in real tangible sense. Thanks!

[@carentanbr]

Great video. Thanks for sharing. I like the inrush explanation too, it never made so much sense before.

[@extendedp1]

Found your channel from your Afrotechmods comment. Glad I did, I'm trying to learn electronics, you make great videos. Thanks.

[@superdau]

Thanks for all the videos! They are real quality. I enjoy the mix of different topics, even the ones about baking cakes ;). It's also nice you tackle the topics from a practical standpoint. (The theory is out there already) Btw. to all who think you can hook up your LED-chain to mains for cheap with this method: yes, you can. But only if you want someone to pop like the LED without resistor!

[@11rmax95]

Thank you so much for your video. I took an entire college circuit analysis class and didn't learn that much

[@MaruPanaca]

Your videos are really good. I'm just beginning my studies in electronics, trigonometry and physics at the community college and your insight to practically use those scary formulas from those dry electronic textbooks... well, pairing your tutorials with those textbooks is like giving kids those pop-up books that teach science as they open each page. I wish I could explain it better. It's just without your tutorials, I'm afraid I would be drowning in the dismay of learning all those formulas.

[@luckyguest6027]

Great Tutorial! Finally a clear and practical explanation in layman's term. God bless u brother.

[@timquadrat70]

Finally I understood the concept of reactance, impedance, power factor, watts vs. volt amps etc. Thank you so much! Bw. your channel is one of my top favourites!

[@guanilee]

After all these years I suddenly and totally understand the reactance and the impedence. Thanks so much-- for the long-over due aha moment that I just got.

[@LeonardoUrsino]

the best youtube channel by far ty for being alive

[@surfcrs]

Great tutorials. Good combination of theory with practical hardware application. Makes things much easier to grasp.

[@michaelcostello6991]

Really good video on impedance and effect on power usage. Excellent introduction demo. Thanks a lot.Michael

[@JusticeAlways]

I finally got a grasp on impedance watching this! Thank you!👍