I've seriously considered working as a teacher. I think that I would enjoy it a lot, but career changes are difficult for a lot of reasons.

Thanks Ben! Really good practical demonstration of Power factor. Wow, 11 years ago. You have been making KZfaq smarter for 11+ years. Great work!

This engineer have a great ability into transferring knowledge, he would make an awesome teacher.

Can't express enough how useful this was! I was stuck on this for months on end with no proper explanation. God bless you man... Do more stuff

What the hell is wrong with the education system when I learn more from 2 of your videos compared to 2 months worth of class...

This is fantastic. Applied... science, its in the name. Thank you so much.

I am understanding impedance for the first time. You are right... your educational process has a logical sequence that improves my ability to follow you. Good work.

I love running across these videos. I have enough math/circuit knowledge to be dangerous, but seem to be off slightly when building practical models (usually to fix my old pinball machine). These videos really fill in the gaps for me. Thanks.

i went through my college circuits class and only understood a small piece of this explanation... even though i could do all the math. I usually have to have a conceptual understanding to do the math, but i had to leave it when i got to ac circuits. This was great!

I would love to see your video on impedance matching. Great videos btw. Keep up the excellent work!

AC technician for a living. That was the best practical explanation I have heard. Great job

I have no idea how I've managed to build so many electric devices and do so much hacking without fully understanding this. Thanks for making me a better person.

Ben. This is excellent. Please keep you brilliant methods educating us all. It really makes a difference to have experts like you offering your valuable time. Thanks

As a matter of fact, I managed to get my degree on a minor of elecectrical eingeneering without actually understanding this. so much better than a textboook Thanks.!

yes we all want the next vedio that you mentioned in this vedio. not to mention here that this is the first practical vedio that make this topic understandable. thanks a lot. I hope you make another vedio on impedance with inductor and capacitor together. also how to match the impedance between circuits. Thanks a lot again. Mufadhal

I'm feeling that classic feeling of not having understood much, but still learnt something.

Absolutely brilliant. Some 40 years after my secondary physics classes I eventually understood thoroughly the story behind that all. A big thank you man, you're truly amazing. Greetings from Poland, by the way.

I'm waiting for part 3 , being into ham radio , I am focusing on impedance more from the RF side of things . Thanks John

Your video is gold standard for this subject. You can teach in a community college setting.

You Sir, are one of the most talented teachers I have seen, and i have seen manny (I am PhD in life sciences). Just watching two of your videos feels like a huge upgrade of my modest understanding of electronics. Thank you!

The comments reflecting people’s appreciation for your teaching need no further explanation. If it hasn’t been said already, your gift of teaching clarifying and sharing your thought processes and insights should be made available to everyone. Thank you!

Thanks, I found your explanation fairly easy to grasp. The addition of a capacitor to a motor explains to me why my large shop vac unit has a "run capacitor" as well as a "start capacitor". I will view more of your videos to increase my understanding of electrical applications and testing. J K

This is really good. Most of the channels talking about electricity and electronics tend to have the knowledge, but lack the skill of teaching. You sir, are a great teacher. Thank you.

This was the absolute best explanation of impedance that I have seen. Part one was all it took but this video was very helpful too. Thank you.

no, not dry, just clear and informative, without all the funny junk, that distracts. bravo! By the way: In Europe in a factory invironment they have to pay to the power company a lot, if they do not care enough for any unbalance of current or powerfactor, so one likes to compensate inside ...

I'm a mechanical engineer. I of course had to take some electrical engineering classes. One of my hobbies is electronics, restoring and building circuits, trouble shooting, I learned about all this in College. This was a great explanation and understand it better than I ever had before.

Wow! This ties together a lot of things that I’ve never seen explained. Thank you!

Fantastic explanation! Really appreciate you doing a video on this. I was taught this in physics but it never made much sense, but I now understand this! Thank you!

Thanks Ben, I've been wondering about power factor for a while and this has really elucidated it.

EXCELLENT TUTORIAL! More like this, please! You are a gifted teacher.

love this channel. its so relaxing and clear to understand. i dont feel like im being hyped up into a sugar frenzy

It's the first time in my entire life I hear about those terms, and they make really lots of sense to me now. I have been learning about electronics for few years and no one raises those topics. Million thanks to you to raise those points. The other thing, I think we have many similarities in our working style, I have most of the tools that you have in your workshop and I use them for personal projects and DIY stuff. I'm trying to make money from them in a way that I really love but I think I didn't reach the optimal point yet of making enough money from them. I have about 15 years of programming experience and I'm doing my best to learn the things that I love to work with like mechanical machines and I'm trying to use my programming and computer experience to turn my machines into CNC toys. The only thing I really lack is the electronics background.

A truly excellent explanation again! Brilliant work! Thank you.

This is a great tutorial. I'd love to watch such a tutorial about inductors as well. Thanks a lot.

Thanks for your making the subject understandable. I am a Mechanical Engineer and working in non-robotics area. However I am interested in robotics and want to build my own robots and mechatronic systems. I am pursuing this on my own. Your tutorials taught me many vital useful things which were tough for me to understand through books. For the first time I had the insight of electrical and electronics through videos like you and all like videos in youtube. Thanks a lot!

Hey Ben, I appreciate the free education you're offering here, did you ever get around to making part three in this series? Would love to hear your thoughts and a practical demonstration on antenna and transmission line tuning to avoid a matching circuit, if that is even possible. I recently became interested in RF by becoming a truck driver and realizing the importance of CB radios, they can be life saving in certain circumstances. With that said, most of the 'technicians' in the business of CB systems are at best misinformed, at worst, deceptive. Most tuning is done via SWR and coax is measured with a tape. Many have probably never seen a VNA. Modern electronics have turned power lines into antennas and every house is a base station for noise. With the legal limit for CB being 5w and most antenna systems are wasting a chunk of that, every fraction of a decibel of loss becomes critical for ones who really want to hear.

Thanks for the two great videos!! I've been reading and reading and reading all this complex math-based stuff. I'm a math and acoustics major so I understand the math, but nobody ever explained just the basic overall practical concepts to allow me to get a better picture of what was actually physically taking place within the circuit rather than sums and integrals and complex numbers. Thanks a bunch! You're a

A motor is basically a coil of wire, so it has resistance and inductance, and its resulting impedance vector will have a positive angle (first quadrant). A capacitor by itself has (almost) only capacitance, and its impedance vector will be at -90* (between third and fourth quadrants). The overall impedance is the geometric sum of these vectors, so it is possible to size the capacitor such that the resulting vector is at 0* (PF=1). Capacitor gives power when inductor needs it and vice versa.

We covered this recently at uni, they just dived straight into complex impedances and phasors and it was a bit of a "say what now?" moment. I really like this ground up, practical intuition approach to teaching this. Thankyou

Great tutorial with real working demo. Thanks a lot .This is the way these concepts should be taught

Thanks so much for these two videos. Your explanation was *way* clearer than the ones in the textbooks when I was learning this stuff. I too, am someone who learns much better when I start with prac instead of theory.

Great tutorial, I have wanted to understand reactance and impedance for a while and this really helped.

Thank you x1000! Our campus is shut for the duration of the semester due to COVID-19, so we need to find online assets to share with students. They must be college-level but understandable, too. I found your vinyl LP electron microscope video which led me to this. Will share these in my Analog Recording Techniques class with our young audio engineers. Please keep sharing! You are a gifted educator!

You're a natural teacher. Great videos. Thanks.

Ohhh, thanks. I recentely just discovered your channel and admire your knowledge and know how on everything. I am going to major in the electronics field and its videos like these that really help my current understanding even better.

Thank-you SO much! You have a great way of explaining concepts (much better than the textbook that's in front of me!). Keep up the awesome work :)

This is the most cogent explanation of this I have ever watched. Thank you! Would love a part three on RF Impedance or RC Filters. :)

Nice workshop and equipment. It amazes me how people with similar interest are so much alike(I too have a workshop). Thanks for the great tutorials!!!!

I'm 9 years late to this but thanks for posting, it was really helpful. I was taught some of this years ago but it didn't really make a lot of sense then. This is a really helpful video, thanks!

Is that an oldschool bridgeport? I used to have one that looks a lot like it.

Great Video! I really appreciate the simple yet informative explanations!

you explain so well. thanks a lot, man! I'd love to see the next video, about matching impedances and etc. I always hear that and I don't have idea what that means.

Great video, and very great explanation. Thanks for sharing.

Ben, I didn't understand much, but I appreciate this being here, when I need it.

thanks Ben, I wish I had you for my professor in college, I would've got more out of it. thanks again, great explanation!!!

this is amazing. I always try to see the real world use before diving into the math, it makes it so much clearer. College was hard to say the least, it was always taught backwards.

Thanks! I learned a lot from that. I've seen a lot of circuits recently that use capacitative droppers, and this was a great way into the theory.

you should do it dude, america needs teachers like you...

Thank you, this video helped bring together disparate knowledge (mathematics, physics and electronic circuits) into a coherent picture of the representation and operation of power factor

More good refresher stuff Ben, thx. I envy your large and well equipped shop!

This was the clearest and simplest explanation of impedance I have seen, and I have been around a long time. You should be teaching electrical engineering. I would really like to see your explanation of characteristic impedance, though.

Seriously, well done. I am starting a Wave propagation course and it perfectly reminded me the basis of impedance, needed for the course. Thumbs up

Awesome, super great videos. Thanks, Ben.

Both of these (pt 1 and 2) are great. The class made it into a mathematical abstraction, as if the phase angle was an actual ange in space that could be measured with a protractor, not a convenient representation of measurements from our test apparatus. One thing I'd love to see is a part 3 of this where you show a practical demo of resonance. I can solve the math, and sort of get it, but if you could do for resonant circuits what you did here for reactance and power factor, that would be awesome. I'm others would benefit as well.

Wow, thanks so much for explaining impedance! I have a far better understanding of it now! Thanks for taking the time to make these videos. I loved the fact that you set up the real circuit before explaining it with numbers. Thank you.

Another excellent explanation, as in part 1, I hope everybody would explain things like this!

Would love to see more videos like this, grate explanations.

Well done Mate, another epic video

A nice, clear, working description of impedance. I thoroughly enjoyed the example and the lesson, because I need to replace my neon indicator bulbs for the supply, and the isolation transformer in my workbench. This example confirms my plans, but I plan to use 4x the impedance.

Excellent video. I may have to watch it two or three more times.

Im retooling on a topic thats relevant to me now and it brought me here. Its about reflected power in plasma systems; most rf systems talk about minimising reflected power. If one stretches the lecture a bit, one can learn it has to do with reactive characteristic on the plasma side thats leads to the impedance mismatch. Many thanks!

Good explanation of capacitive impedance. I now understand a bit more about impedance.

Absolutely amazing video

awesome way of teaching!!

You might not read this, but I am so very thankful that I found these videos... I´m a student of mechanical engineering and had to take a course of electrical engineering. But, it was so math heavy and impractical, I basicly wouldn´t know how a restistor looks like if I had not descided that I would read up on the practical side of this myself. I simply didn´t get anything practaical out of it, and this helps a lot to see this sh*** waste of time as something useable

Awesome video, really really helpful!

Take my bow sir.... You are extraordinary 🙏

When dealing with capacitors and inductors, there is the interesting world of Resonance. Perhaps you could do a bit on resonance and how impedance relates to frequency and how resistance affects the Q of the resonant circuit.

Great explanation of complex concepts. You mentioned in the beginning of the part 1 video that others like to start with the math and then give an example, whereas you start with the example and then do the math. Your method is more consistent with the latest learning science. This reminds me of a method of teaching called Anchored Instruction. Check it out. I wish my engineering professors had taught like this when I was in college.

Aw, thanks! I really appreciate it!

Great work on these videos! Really helping my understanding

Excellent work, Bromigo.

You have a tenth of the subscribers you deserve. Keep up the good work ben

Awesome explained well about imedence, resistive circuit, capacitance circuit and power factor.

I know this was 12 years ago, but I'd love to see one on coax cable impedance. These two videos really helped me understand impedance much better than any other lesson, and the next step (for me) is to connect that knowledge to the world of radio - how a 75ohm coax cable relates to an 8ohm speaker relates to a 300ohm->75ohm antenna balun.

Really appreciate your work! Helps with understanding. Big thanks

Again, very useful information. Thank you.

Awesome video. Thank you for the knowledge.

Well done, sir; very well done!

Awesome video even in 2021. Hope you’re doping great man.

excellent way of explaining the concept. thank you.

Yeah you cleared alot up for me in these 2 videos, great job and thank you!

Ben thanks for the videos, they help a lot. Looking forward to see further videos on resonance and where/how in practice it is used. Thanks a lot!

Nicely done. You have a talent for teaching. Looking forward to a third video on characteristic impedance of transmission lines.

very good video Thanks for upload

Easiest way to always know what is happening Capacitor resists (any) change of voltage Inductor resists (any) change of current Those wants to be in exactly the state you have found them. Either full of voltage or current or void of it. Empty capacitor will resist village change by charging itself (it would be behaving like resistor, as it takes energy to charge it) and then resist direct voltage flow, until voltage rise or change of direction Same applies to inductor, but it is current this time. Inductor won't stop current for tough. Inductor can release all energy in one extremely short burst of energy. I hope it would help It certainly helped me understand this part of electronics. Especially inductors, which I was seeing as transformer. Be aware it does apply to transformers too, but this is more complex, as current flowing in secondary winding is actually creating opposing magnetic field to magnetic field created by primary winding. This is phenomena behind transformers. This is why you can run say 100KW transformer with say barely 5W of usage on secondary side and you won't waste much energy

well, this tutorial pretty much does the same job at teaching as my first semester of theoretical electronics. i'd say watching 40 minutes of video is better than spending 3 months in a lecture hall.

You are outstanding at what you do. Thank you.

Great video! Very helpful!

Thank you for a clear explanation of impedance and power factor.