What are Resistance Reactance Impedance

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  • Опубликовано: 24 ноя 2024

Комментарии • 663

  • @X19-x5f
    @X19-x5f Год назад +595

    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.

  • @levoleynik4899
    @levoleynik4899 8 месяцев назад +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!

  • @belo2902
    @belo2902 11 месяцев назад +106

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

    • @Jesus420.69
      @Jesus420.69 5 месяцев назад

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

  • @WoobyMe
    @WoobyMe Год назад +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 месяцев назад +17

      This is my kind of humor 💀

    • @Scrub_Lord-en7cq
      @Scrub_Lord-en7cq 9 месяцев назад

      @@jacobgriswold7215autistic humor

    • @AustinAdams
      @AustinAdams 4 месяца назад +3

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

    • @johnreymaliao3352
      @johnreymaliao3352 4 месяца назад

      Ur enough to evolved from monkey humanoid...😅

  • @vikingwind25
    @vikingwind25 5 месяцев назад +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!

  • @joelonderee2872
    @joelonderee2872 Год назад +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  Год назад +1

      You are welcome. Keep in touch.

  • @Omni-Qadhaya
    @Omni-Qadhaya Месяц назад +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.

  • @B00BS.
    @B00BS. 9 месяцев назад +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!

  • @Sanjay-eb6fe
    @Sanjay-eb6fe Год назад +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 👍

  • @AFatWhiteShark
    @AFatWhiteShark Год назад +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!

    • @Profmad
      @Profmad  Год назад +1

      Wow, thank you!

  • @alanturner1184
    @alanturner1184 Месяц назад +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

  • @paules0099
    @paules0099 11 месяцев назад +13

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

  • @rmcp5118
    @rmcp5118 Год назад +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 месяцев назад

      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 месяцев назад

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

  • @freddievargas9315
    @freddievargas9315 4 месяца назад +1

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

  • @theodorecalvin4214
    @theodorecalvin4214 Год назад +66

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

    • @Profmad
      @Profmad  Год назад +3

      Thank you.

    • @mar-tin702
      @mar-tin702 Год назад +5

      What is grok

    • @BA-pg4od
      @BA-pg4od Год назад

      to understand profoundly and intuitively@@mar-tin702

    • @John.Doe.2025
      @John.Doe.2025 Год назад +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 Год назад

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

  • @needMoreInput
    @needMoreInput Год назад +1

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

  • @sudhirpatil3434
    @sudhirpatil3434 Год назад +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!!! 👍

  • @blackwhite1257
    @blackwhite1257 6 часов назад +1

    Nice vid, great explanations, thank you. 🙏 ❤

  • @TheMoeP
    @TheMoeP 7 месяцев назад +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 🤣

  • @wenhaoyan1003
    @wenhaoyan1003 11 месяцев назад +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!

  • @69kamran21
    @69kamran21 Год назад +5

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

  • @ahmershaikh666
    @ahmershaikh666 9 месяцев назад

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

  • @PrinceKumar-hh6yn
    @PrinceKumar-hh6yn 11 месяцев назад

    Your lectures have the ability to make anyone understand engineering

  • @audionmusic2787
    @audionmusic2787 Год назад +2

    Ideal balance of brevity and completeness. Bravo.

  • @melbournecoarseanglers
    @melbournecoarseanglers Год назад +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.

  • @siriusleto3758
    @siriusleto3758 Год назад +5

    Best explanation I've seen in my life.

  • @depresty
    @depresty 10 месяцев назад +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 .

  • @francospagnolo1385
    @francospagnolo1385 11 месяцев назад

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

  • @dkrishna2313
    @dkrishna2313 11 месяцев назад +1

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

  • @swirldude3636
    @swirldude3636 11 месяцев назад

    this is the clearest video I've ever seen

  • @kingmolex8524
    @kingmolex8524 3 месяца назад +2

    Damn you deserve the whole world.

  • @rofikulislam1751
    @rofikulislam1751 Год назад

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

  • @RaminRnn
    @RaminRnn 7 месяцев назад

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

  • @TrionityIr
    @TrionityIr Год назад +15

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

    • @Profmad
      @Profmad  Год назад +2

      Thank you.

    • @mikejones-vd3fg
      @mikejones-vd3fg Год назад

      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 месяцев назад

      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.

  • @SandeepSingh-km1fs
    @SandeepSingh-km1fs Год назад +1

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

  • @thetechsavvyges
    @thetechsavvyges Год назад +2

    Best analogy so far

  • @_dheerajgupta
    @_dheerajgupta Год назад +5

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

  • @xacteducation8036
    @xacteducation8036 29 дней назад

    Best circuit graphics I have ever seen!

  • @pauldiggs1087
    @pauldiggs1087 Год назад +4

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

    • @Profmad
      @Profmad  Год назад

      Thank you soo much.

  • @lg2058
    @lg2058 11 месяцев назад +1

    OMG this channel needs way many more subscribers

  • @VndNvwYvvSvv
    @VndNvwYvvSvv 11 месяцев назад +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 25 дней назад

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

  • @LemlemEnjerawerk
    @LemlemEnjerawerk 6 месяцев назад

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

  • @rameshnkdv6757
    @rameshnkdv6757 11 месяцев назад +1

    Excellent explanation sir

  • @jasonbourne1981
    @jasonbourne1981 4 дня назад

    Best video on the topic hands down thanks

  • @otv88
    @otv88 Год назад +12

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

    • @Profmad
      @Profmad  Год назад

      Glad it was helpful!

  • @RahulPrajapati-jw8iu
    @RahulPrajapati-jw8iu 9 месяцев назад

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

  • @kevinmclaren5517
    @kevinmclaren5517 Год назад +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

  • @davidsymalla4785
    @davidsymalla4785 Год назад +11

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

  • @gmrn3014s
    @gmrn3014s Год назад +6

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

  • @kuvaleshy2784
    @kuvaleshy2784 23 дня назад

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

  • @jeffhein7275
    @jeffhein7275 11 месяцев назад

    Tuvok narrating basic EE concepts is awesome 😉

  • @hexbinoban6170
    @hexbinoban6170 Год назад +4

    Very well explained using insightful animations/illustrations. 🦉

    • @Profmad
      @Profmad  Год назад

      Thank you so much 😀

  • @kalli71
    @kalli71 Год назад +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  Год назад

      Awesome, thank you!

  • @sundararajanpt7158
    @sundararajanpt7158 2 месяца назад

    Explanation and depth of the subject is excellent.

  • @rachidlamzougui1683
    @rachidlamzougui1683 Месяц назад

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

  • @solankishailesh6424
    @solankishailesh6424 2 месяца назад

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

  • @ic_0129
    @ic_0129 10 месяцев назад

    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

  • @hwtans2717
    @hwtans2717 6 месяцев назад

    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.

  • @MrMiladmk
    @MrMiladmk 11 месяцев назад

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

  • @bsb770
    @bsb770 Год назад

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

  • @NinaadDas
    @NinaadDas 4 месяца назад

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

  • @John-wx9oy
    @John-wx9oy 11 месяцев назад +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)

  • @Robert-zl4yi
    @Robert-zl4yi 10 месяцев назад +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.

  • @jonathanmartins7744
    @jonathanmartins7744 Год назад +1

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

    • @Profmad
      @Profmad  Год назад

      You're very welcome!

  • @NimeshKavinda139
    @NimeshKavinda139 Год назад

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

  • @isaacmarinobavaresco7397
    @isaacmarinobavaresco7397 Год назад +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.

  • @Robby-Rob-Robertson-III
    @Robby-Rob-Robertson-III 9 месяцев назад

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

  • @puddleduck1405
    @puddleduck1405 Год назад

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

  • @arunprashanna7494
    @arunprashanna7494 Год назад +3

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

  • @GerbenWijnja
    @GerbenWijnja Год назад +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 Год назад

      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 месяцев назад +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 месяцев назад

      Depends on whether voltage or current is constant.

  • @metincansever9810
    @metincansever9810 Год назад

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

  • @MitulShah2201
    @MitulShah2201 Год назад +2

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

  • @jamesholbrook3648
    @jamesholbrook3648 Год назад

    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.

  • @thisgeneration2894
    @thisgeneration2894 2 месяца назад

    Finally a video I understand bless you brother

  • @willwill1738
    @willwill1738 11 месяцев назад

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

  • @Mohammadsohrab205
    @Mohammadsohrab205 11 месяцев назад

    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

  • @eugalshokeen397
    @eugalshokeen397 7 месяцев назад

    One of the best video I've ever seen.

  • @እምዬኢትዮጵያንቂ-የ7ጐ
    @እምዬኢትዮጵያንቂ-የ7ጐ 4 месяца назад

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

  • @sriramireddygangireddy8597
    @sriramireddygangireddy8597 7 месяцев назад

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

  • @NaturesNurtureHub
    @NaturesNurtureHub Год назад

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

  • @NightWear21
    @NightWear21 Год назад +1

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

  • @YvanHarvey
    @YvanHarvey Год назад

    The best video on Electrical behaviour I ever seen.

  • @forrealforreal2451
    @forrealforreal2451 11 месяцев назад

    the best explanation I have ever seen

  • @DashkaMilashka015
    @DashkaMilashka015 Год назад

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

  • @dsraju1234
    @dsraju1234 10 месяцев назад

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

  • @LiveHappy76
    @LiveHappy76 Год назад

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

    • @Profmad
      @Profmad  Год назад +1

      Much appreciated!

  • @florentinosanchez3969
    @florentinosanchez3969 15 дней назад

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

  • @walterbrown8694
    @walterbrown8694 Год назад +14

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

  • @michaelhawthorne8696
    @michaelhawthorne8696 8 месяцев назад

    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...😏😂

  • @a.i9331
    @a.i9331 11 месяцев назад

    This is the best video about this topic.

  • @AbuDujana692
    @AbuDujana692 Год назад +1

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

    • @Profmad
      @Profmad  Год назад

      yeah. Thats correct.

  • @yogaforsuccess
    @yogaforsuccess Год назад +1

    Thank you for your clear and precise explanation

  • @usawashington8487
    @usawashington8487 Год назад

    Best channel ever in youtube, keep going please !

  • @erin19030
    @erin19030 Год назад

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

  • @thenewsydneyguy8662
    @thenewsydneyguy8662 11 месяцев назад

    Absolutely phenomenal with the explanations. Thank you Prof Mad for this

  • @bullohsemak8959
    @bullohsemak8959 8 месяцев назад

    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.

  • @UnitFerminBDauag
    @UnitFerminBDauag 8 месяцев назад

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

  • @francishubertovasquez2139
    @francishubertovasquez2139 4 месяца назад +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.

  • @mohsensali1469
    @mohsensali1469 11 месяцев назад

    The water wheel analogy was great

  • @NaveenKumar-vj9sc
    @NaveenKumar-vj9sc 14 дней назад

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