What are Resistance Reactance Impedance

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  • Опубліковано 21 лис 2024

КОМЕНТАРІ • 657

  • @X19-x5f
    @X19-x5f Рік тому +594

    I’m 60 years old and I have seen hundreds of videos on electronics. This is, undoubtedly, the best explanation I have ever seen. Subbed.

  • @belo2902
    @belo2902 11 місяців тому +106

    In my 4 years of studying elecrical engineering, never seen such a excellent example like this

    • @Jesus420.69
      @Jesus420.69 5 місяців тому

      I'm at 2nd year and this just slaps.

  • @levoleynik4899
    @levoleynik4899 8 місяців тому +61

    As Noah's 4,234 year old son, I have never seen an example as clear as this! Struggled understanding the concept before, now I can go and build the second tower of Babel without any difficulties. Subscribed!

  • @WoobyMe
    @WoobyMe Рік тому +128

    Im an ancient 493 year old man, and this is by far the great explanation i have ever seen across the centuries I have roamed this earth. Liked, subscribed, and rang the bell.

    • @jacobgriswold7215
      @jacobgriswold7215 11 місяців тому +17

      This is my kind of humor 💀

    • @Scrub_Lord-en7cq
      @Scrub_Lord-en7cq 9 місяців тому

      @@jacobgriswold7215autistic humor

    • @AustinAdams
      @AustinAdams 4 місяці тому +3

      There are sooo many of these, finally someone made a joke about it! 🤣

    • @johnreymaliao3352
      @johnreymaliao3352 4 місяці тому

      Ur enough to evolved from monkey humanoid...😅

  • @vikingwind25
    @vikingwind25 5 місяців тому +9

    I am 72 years old, hold a 2 year degree in electronics and was a product manager for 28 years for RF and DC calibration products sold directly to NIST. I wish your videos were around when I was a young student. Learning would have been much easier. Great presentation! Thanks!

  • @Omni-Qadhaya
    @Omni-Qadhaya Місяць тому +1

    Being an electrical undergrad, I appreciate your analogy of inductor and capacitor. The whole duration of this video never had an breaking point of the understanding.

  • @joelonderee2872
    @joelonderee2872 Рік тому +88

    Excellent. All stuff I knew 50+ years ago as an engineering student, but forgot. Great re-education for me.I cannot wait to see more of your videos. The diaphragm and water wheel did the trick to making it understandable.

    • @Profmad
      @Profmad  Рік тому +1

      You are welcome. Keep in touch.

  • @alanturner1184
    @alanturner1184 Місяць тому +1

    As a newbie to electronics as a hobby I am gaining so much knowledge and understanding on various topics I have watched. Thank you

  • @AFatWhiteShark
    @AFatWhiteShark Рік тому +2

    For someone that genuinely never understood electrical engineering as a whole -honestly not even 1% of it- ...Thought it was above my capabilities.
    Thank you, for sure a new sub!

  • @rmcp5118
    @rmcp5118 Рік тому +11

    Nice explanation. Many moons ago when I was in the Navy electrician school they taught us "ELI the ICE man" to help us remember. Voltage leads current in an inductive circuit = ELI and current leads voltage in a capacitive = ICE. Of all the things I did forget that was one of the things which stuck.

    • @toddb930
      @toddb930 11 місяців тому

      Same with me. Except I was Air Force.
      One other thing I learned in my Air Force electronics training was that current flowed from negative to posiitive. After the AF I went to college to get an EE degree. There they taught current flow from positive to negative.

    • @rajkumarburada3799
      @rajkumarburada3799 7 місяців тому

      Another way is to remember - CIVIL- Capacitor - I current leads Voltage, Inductor (L) , current lags Voltage.

  • @B00BS.
    @B00BS. 9 місяців тому +6

    By far the best video on this topic, period. Brilliant explanation, brilliant analogy, brilliant animation. The world needs more people like you. Hats off to you and your team for working this hard!

  • @paules0099
    @paules0099 11 місяців тому +13

    This brought me back to my electronic engineering class! We were taught using the same analogy way back in 1980!

  • @theodorecalvin4214
    @theodorecalvin4214 Рік тому +66

    45 years later, and I finally grok capacitors (in signal circuits, specifically). You did that. Thank you.

    • @Profmad
      @Profmad  Рік тому +3

      Thank you.

    • @mar-tin702
      @mar-tin702 Рік тому +5

      What is grok

    • @BA-pg4od
      @BA-pg4od Рік тому

      to understand profoundly and intuitively@@mar-tin702

    • @John.Doe.2025
      @John.Doe.2025 Рік тому +7

      @@mar-tin702 Old farter's language.
      *grok* - _verb groks, grokking, grokked [with obj.]_ understand (something) intuitively or by empathy _■ [no obj.]_ establish a rapport

    • @mrbrown6421
      @mrbrown6421 Рік тому

      @@10_ashutosh_01
      ...and what have you done for mankind, dear friend ?

  • @Sanjay-eb6fe
    @Sanjay-eb6fe Рік тому +9

    If a picture can speak a thousand words, a video speaks a trillion. And this video in particular proves that these statements are true. Thanks 👍

  • @TheMoeP
    @TheMoeP 7 місяців тому +1

    Been working in electronics for 3 years now and I like watching these videos whenever I have those brain freezes and I need a refresher 🤣

  • @freddievargas9315
    @freddievargas9315 4 місяці тому +1

    This is probably the most straight forward, concise and precise explanation of the topic. Amazing pedagogical material.

  • @needMoreInput
    @needMoreInput Рік тому +1

    Kids are so lucky with the amount of resources available to them. I am jelly, wish I had this stuff in my schooling.

  • @melbournecoarseanglers
    @melbournecoarseanglers Рік тому +4

    I wish my old electrical lecturer (RIP Charlie) had access to this video in 1976. The best description of impedance I have ever seen. Thanks and keep up the good work.

  • @depresty
    @depresty 10 місяців тому +1

    I'm fifth year electromechanical engineering student and this is the first time i see such a beautiful example to understand how impedance works. Thank you sir .

  • @wenhaoyan1003
    @wenhaoyan1003 10 місяців тому +2

    I'm new to electronics, and some of the concepts are so hard to grasp. This is by far the best video I've seen, everything is SUPER easy to understand and extremely inspiring!

  • @sudhirpatil3434
    @sudhirpatil3434 Рік тому +35

    Man- you made thing's so simple for me to understand!
    Given the much complex nature of stuff to grasp - your animations really are worthwhile n efforts r laudable!!! 👍

  • @rachidlamzougui1683
    @rachidlamzougui1683 Місяць тому

    Resistance,impedance and reactance (R, Z and X) are all measured in the unit of Ohm. Thanks a lot for this video

  • @RaminRnn
    @RaminRnn 7 місяців тому

    Great job, if only school and college would explain things this way. I'm gonna stick around.

  • @69kamran21
    @69kamran21 Рік тому +5

    absolute knowledge and I bet that my teacher woudnt teach me like that, hats off to U Prof Mad

  • @SandeepSingh-km1fs
    @SandeepSingh-km1fs Рік тому +1

    wow....in a very simple way ..u cleared all d complications regarding... electric parameters

  • @dkrishna2313
    @dkrishna2313 11 місяців тому +1

    Excellent description of the topics with easy to understand explanations accompanied by clear diagrams.

  • @kevinmclaren5517
    @kevinmclaren5517 Рік тому +2

    Thank you, thank you, thank you!! I needed this comparative visual so much. I was completely hung up on capacitive reactance until I watch the section on the elastic membrane. That's exactly what I needed to see to fit the pieces together in my head. Thank you so much

  • @ahmershaikh666
    @ahmershaikh666 9 місяців тому

    So far it's the best visual explanation of concept I've seen.

  • @audionmusic2787
    @audionmusic2787 Рік тому +2

    Ideal balance of brevity and completeness. Bravo.

  • @francospagnolo1385
    @francospagnolo1385 10 місяців тому

    Very clear exposition, among so many contents useless to the dissemination of knowledge, here is something really well explained. Thank you very much

  • @kuvaleshy2784
    @kuvaleshy2784 20 днів тому

    Excellent Explanation Sir. It is one of the simplest explanation. I never seen such a good explanation

  • @pauldiggs1087
    @pauldiggs1087 Рік тому +4

    This video was a refresher for me. I am going to introduce it to my HVAC/R class. Thanks professorM

    • @Profmad
      @Profmad  Рік тому

      Thank you soo much.

  • @TrionityIr
    @TrionityIr Рік тому +15

    This is the best analogy I've seen for inductance and capacitance.

    • @Profmad
      @Profmad  Рік тому +2

      Thank you.

    • @mikejones-vd3fg
      @mikejones-vd3fg Рік тому

      I agree, was waiting to see how voltage/current lag would be shown with water, and the water wheel was perfect. There you can see without words how it works. Which has me thinking maybe the best explanations are ones that just boild everything down to untiuve bits, idealy without words, after all everything we're talking about is phsyical and we should be able to show what we're talking about with some sort of analogous action. I would love to see more mathematical relationships shown with action. I guess graphs are the closest thing but they're not intutive either, having to process mentally whats going on with a curve. Like a sine wave is circular motion through time but the graph doesnt make that obivouse. But say something like a gradient, you can see right away which parts are heavily concentrated which ones arent, its obviouse, a 2d graph you need to use a legend to figure out which was is up even.

    • @paules0099
      @paules0099 11 місяців тому

      The best way I remembered reactance from inductors and capacitance is ELI the ICE man. E for voltage, L for inductor, I for current, meaning voltage leads current in an inductance and I for current, C for capacitor, E for voltage, meaning Current leads voltage in a capacitor.

  • @rameshnkdv6757
    @rameshnkdv6757 11 місяців тому +1

    Excellent explanation sir

  • @_dheerajgupta
    @_dheerajgupta Рік тому +5

    Loved the analogy with water flow. This video cleared alot of doubts i had. Thanks a lot👍

  • @PrinceKumar-hh6yn
    @PrinceKumar-hh6yn 11 місяців тому

    Your lectures have the ability to make anyone understand engineering

  • @jeffhein7275
    @jeffhein7275 10 місяців тому

    Tuvok narrating basic EE concepts is awesome 😉

  • @davidsymalla4785
    @davidsymalla4785 Рік тому +11

    Best AC Analogy to date my brother! This is going to help a lot of people understand impedances! 😲😲😲😲😲😲😲😲

  • @otv88
    @otv88 Рік тому +12

    VERY well done. Never understood this stuff until now. Excellent visuals and explanation. Thank you very much.

    • @Profmad
      @Profmad  Рік тому

      Glad it was helpful!

  • @isaacmarinobavaresco7397
    @isaacmarinobavaresco7397 Рік тому +1

    This video is certainly the best I have ever seen on this subject.
    I too devised this capacitor model of a membrane in a chamber many years ago and never seen anybody else using it before.
    I think that the only point you could improve is explaining that the paradoxical behavior of the current (or water) flowing ahead of the voltage (or pressure) being applied is due to the voltage stored inside the capacitor (or the elastic force of the stretched membrane). Of course that that does not work for the very first cycle.

  • @jamesholbrook3648
    @jamesholbrook3648 Рік тому

    As a 1st year ham radio operator I wish my study materials had explained these terms as well as you did. Now it all makes sense.

  • @Robert-zl4yi
    @Robert-zl4yi 10 місяців тому +13

    I'm a ghost from 1845, never in my 178 years of being dead have i seen a better explanation than this, thank you so much.

  • @VndNvwYvvSvv
    @VndNvwYvvSvv 11 місяців тому +2

    Resistance is the zeroth order reaction. Reactance is the first order derivative, in which an inductor opposes change in current with instantaneous change in voltage, and the capacitor resists change in voltage with instantaneous change in current. In brief, resistance is response to a constant. Reactance is a response change. Combining both reactive effects plus resistance, the sum is called impedance.

    • @13DKA-kg2fz
      @13DKA-kg2fz 22 дні тому

      ...and you even managed to write "impedance" correctly!

  • @John-wx9oy
    @John-wx9oy 11 місяців тому +1

    In Navy electronics school, we learned about ELI the ICE man:
    voltage (E), in an inductive circuit (L), leads current (I)
    current (I), in a capacitive circuit (C), leads voltage (E)

  • @solankishailesh6424
    @solankishailesh6424 2 місяці тому

    Prof MAD You Are The Boss Of All Explainers In Universe ❤

  • @hwtans2717
    @hwtans2717 6 місяців тому

    The elastic membrane analogy for a capacitor in an electrical circuit is genius. In most circuits it is hard to visualize that no current is actually flowing thru the cap, but there is still an energy exchange.

  • @kingmolex8524
    @kingmolex8524 3 місяці тому +2

    Damn you deserve the whole world.

  • @puddleduck1405
    @puddleduck1405 Рік тому

    thanks so much! Im a first year engineering student and this helped me a lot, God bless!!

  • @NinaadDas
    @NinaadDas 4 місяці тому

    The water analogy is genius. I never pictured it that way.

  • @francishubertovasquez2139
    @francishubertovasquez2139 4 місяці тому +1

    When the current doesn't follow the voltage fluctuation probably there's anti current in their merge. Tickle. Thanks for the how they work lecture.

  • @kalli71
    @kalli71 Рік тому +11

    nicely put together, well done! I only recently learned the differences, but this is an excellent: what-is-what explanation. thank you

    • @Profmad
      @Profmad  Рік тому

      Awesome, thank you!

  • @Mohammadsohrab205
    @Mohammadsohrab205 11 місяців тому

    Excellent excellent excellent just amazing and great way to make us understand I have seen several videos but no one made us understand like this thank you so much 🎉
    Love from India

  • @gmrn3014s
    @gmrn3014s Рік тому +6

    This is genuinely helpful for me in learning electronics, salute to you for giving us these great illustrations

  • @sundararajanpt7158
    @sundararajanpt7158 2 місяці тому

    Explanation and depth of the subject is excellent.

  • @LemlemEnjerawerk
    @LemlemEnjerawerk 6 місяців тому

    I have never seen as clear as this explanation.thank you bro.

  • @rofikulislam1751
    @rofikulislam1751 Рік тому

    undoubtedly it is the best video on electronics that I have seen

  • @swirldude3636
    @swirldude3636 11 місяців тому

    this is the clearest video I've ever seen

  • @እምዬኢትዮጵያንቂ-የ7ጐ
    @እምዬኢትዮጵያንቂ-የ7ጐ 4 місяці тому

    Amazing explanation indeed ! I have always been wondering what creates the lag and the lead. Now my questions are answered . Thank you!

  • @siriusleto3758
    @siriusleto3758 Рік тому +5

    Best explanation I've seen in my life.

  • @walterbrown8694
    @walterbrown8694 Рік тому +14

    Should also cover Admittance, Conductance, and Susceptance - Helpful in parallel circuit analysis.

  • @bullohsemak8959
    @bullohsemak8959 8 місяців тому

    As engineer to truly understand some things we must concluded it or verses it all it types. Sir u concluded this topic so well. U must be are professor.

  • @arunprashanna7494
    @arunprashanna7494 Рік тому +3

    The best explanation for the difference between resistane, reactance and impedance I have ever seen. Thanks for the video 😃

  • @lg2058
    @lg2058 11 місяців тому +1

    OMG this channel needs way many more subscribers

  • @michaelhawthorne8696
    @michaelhawthorne8696 8 місяців тому

    Great explanations.
    I thought I had a question about the water wheel at 6:50 but after reviewing, seems sound.
    The way I remember which does what with regards to current lagging or leading in Capacitive or Inductive reactance is:
    If you have a circuit fed with a Resistor to a Capacitor to ground, the current in the Capacitor will initially be high as the voltage increases (It will initially be discharged and look like a short)....the current leads the voltage (Current being higher first)
    If you have a circuit fed with a resistor to an Inductor to ground, the current in the Inductor will be low as it initially resists current flow but the voltage will be high, later, the current increases so the current lags the voltage. (Current being Low first)
    Capacitance: Current Leads
    Inductance: Current Lags
    Hope this helps 😊
    Hope I'm right...😏😂

  • @MrMiladmk
    @MrMiladmk 11 місяців тому

    The best explanation ever by using mechanical concepts. Great job!

  • @AbuDujana692
    @AbuDujana692 Рік тому +1

    Great job dear....you must have spent considerable time in creating this very good lecture

    • @Profmad
      @Profmad  Рік тому

      yeah. Thats correct.

  • @Robby-Rob-Robertson-III
    @Robby-Rob-Robertson-III 9 місяців тому

    This was wonderful, thank you - best use of water analogies I've seen yet!

  • @ic_0129
    @ic_0129 10 місяців тому

    This is perfect! I needed a refresher and you just summarized the last three chapters of my first semester so well. Saved me several hours :D

  • @jasonbourne1981
    @jasonbourne1981 2 дні тому

    Best video on the topic hands down thanks

  • @jimpowell9205
    @jimpowell9205 Рік тому

    Excellent presentation. I already knew this, but have struggled to explain to others! No more……….thanks.

  • @jonathanmartins7744
    @jonathanmartins7744 Рік тому +1

    Best explanation about impedance that I ever saw! Thank you!

    • @Profmad
      @Profmad  Рік тому

      You're very welcome!

  • @hexbinoban6170
    @hexbinoban6170 Рік тому +4

    Very well explained using insightful animations/illustrations. 🦉

    • @Profmad
      @Profmad  Рік тому

      Thank you so much 😀

  • @dsraju1234
    @dsraju1234 10 місяців тому

    Excellent explanation, it's so simple and practical that even intelligent kids can understand these concepts 👏👏👏

  • @xacteducation8036
    @xacteducation8036 27 днів тому

    Best circuit graphics I have ever seen!

  • @GerbenWijnja
    @GerbenWijnja Рік тому +7

    6:10 it is important to realize that the current in the circuit does not change. If water flows with (for example) 1 litre/minute through the narrow socket, then it also flows at 1 litre/minute in the wider tubes. It just moves faster through the narrow socket. Same in an electrical circuit; if you introduce a resistor, the flow of electrons (the "current") is the same everywhere in the (serial) circuit, including inside the resistor.

    • @andreiv3627
      @andreiv3627 Рік тому

      hello, what are you saying is that as long as the Force is the same in both cases, (case 1 pipe having same diameter, case 2 pipe narrows and then comes back at same diameter ) the flow of water would be the same? "Bernoulli's principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy. The principle is named after Daniel Bernoulli, a swiss mathemetician, who published it in 1738 in his book Hydrodynamics."

    • @dexterlyndonsabusap1192
      @dexterlyndonsabusap1192 11 місяців тому +1

      I agree. Also, if the voltage is analogous to force, which in water flow is due to pressure, then the introduction of a resistor in a circuit should affect the voltage and not the current.

    • @ncooty
      @ncooty 10 місяців тому

      Depends on whether voltage or current is constant.

  • @MitulShah2201
    @MitulShah2201 Рік тому +2

    Best video found ever for this explanation.thank you so much❤

  • @bsb770
    @bsb770 11 місяців тому

    Wow this is by far most the best I have seen so far. Sending to my kid 👦 right now!!

  • @RahulPrajapati-jw8iu
    @RahulPrajapati-jw8iu 9 місяців тому

    This video is by far the best video I have ever seen

  • @Freefirevwdios
    @Freefirevwdios 11 місяців тому +1

    Good very helpfull kep formullae with concept

  • @NightWear21
    @NightWear21 Рік тому +1

    excellent video!! been a student of electrical for too long. This is great explanation.

  • @DashkaMilashka015
    @DashkaMilashka015 Рік тому

    seriously, the best explanation of impedance. thank you so much

  • @yuvaraj1386
    @yuvaraj1386 4 місяці тому

    It is a mystery you revealed it and nailed it

  • @NaveenKumar-vj9sc
    @NaveenKumar-vj9sc 11 днів тому

    Top notch explanation ! Never before Never After. Thank you! 🙏❤

  • @LiveHappy76
    @LiveHappy76 Рік тому

    Absolutely top-notch material!! Simple, clear, memorable. Thank you! With content like this, Prof MAD will grow like MAD! Wait for it....

    • @Profmad
      @Profmad  Рік тому +1

      Much appreciated!

  • @erin19030
    @erin19030 Рік тому

    Resistance, Reactance , impedance ESR, V-loss and leakage. So many ways to test a Cap.

  • @florentinosanchez3969
    @florentinosanchez3969 13 днів тому

    Thank you so much, I dindnt get it with any other video until I saw this one

  • @NaturesNurtureHub
    @NaturesNurtureHub Рік тому

    Unbelievable, this was simple and plain to understand. Thanks alot

  • @mohsensali1469
    @mohsensali1469 11 місяців тому

    The water wheel analogy was great

  • @NimeshKavinda139
    @NimeshKavinda139 Рік тому

    The best explanation I've ever seen. Thank you.

  • @thetechsavvyges
    @thetechsavvyges Рік тому +2

    Best analogy so far

  • @briantamburelli7573
    @briantamburelli7573 Рік тому +1

    Thank you so much. That was fascinating 😀. I have an electronics lab in my apartment. I actually found a school that still teaches electronics. I'm going to start in December online. Right now I've been teaching myself from books I got from Amazon with experiments.😊

  • @metincansever9810
    @metincansever9810 Рік тому

    Best explanation I've seen so far. Thank you.

  • @sriramireddygangireddy8597
    @sriramireddygangireddy8597 6 місяців тому

    Very good animation and explanation. This video helps students to understand these concepts easily. Well done.

  • @willwill1738
    @willwill1738 11 місяців тому

    Super!!🤪👍Ever I encounter so decent, well developed and made content - straight to the point and easy to understand. Prof please keep on!!!

  • @nealesmith1873
    @nealesmith1873 2 місяці тому

    Great video! Had not seen the membrane analogy before.

  • @thisgeneration2894
    @thisgeneration2894 2 місяці тому

    Finally a video I understand bless you brother

  • @yogaforsuccess
    @yogaforsuccess Рік тому +1

    Thank you for your clear and precise explanation

  • @UnitFerminBDauag
    @UnitFerminBDauag 8 місяців тому

    thank you for the very clear and intelligent explanation that I just watched

  • @Philippians4vs4-8
    @Philippians4vs4-8 Рік тому

    Dear Sir, I noted that you use conventional current flow. I, too, use conventional flow, but some of my professors would give us both a zero for in actuality current flows in the opposite direction. Notwithstanding, I spent 50 years in industrial electronics and conventional flow has never let me down, it is much easier to comprehend, even though it is wrong.😂 you must have been trained by Malveno. Me Too, I think that he is the best author to ever come on the scene.

  • @mangod5209
    @mangod5209 Рік тому +1

    Thank you sir ❤
    You are genius, you made it easy to understand. There is difference between to know and understand.