What are Resistance Reactance Impedance

🔌 Understanding Resistance, Reactance, and Impedance in Circuits 🔌
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⏰ Timestamps:
0:00 - Introduction
0:13 - What is electricity
1:00 - Alternating current vs Direct current
2:28 - Resistance in DC circuits
2:39 - Resistance and reactance in AC circuits
4:30 - Resistor, inductor and Capacitor
4:37 - Electricity Water analogy
6:01 - Water analogy for Resistance
6:46 - Water analogy for Inductive Reactance
9:14 - Water analogy for Capacitive Reactance
11:21 - Impedance
In this informative video, we dive deep into the world of electrical circuits to uncover the secrets of resistance, reactance, and impedance. Join us as we unravel these essential concepts and how they impact current flow, voltage behavior, and overall circuit performance.
We start by exploring the relationship between voltage and current, emphasizing the differences between direct current (DC) and alternating current (AC). Learn how voltage changes influence current flow, and why AC circuits exhibit unique behaviors.
Discover how electronic components affect current behavior in both DC and AC circuits, with a focus on resistance, inductive reactance, and capacitive reactance. These components play crucial roles in shaping the current's response to voltage changes.
We use relatable water analogies to explain complex concepts, making it easier to grasp the fundamentals of electrical circuits. See how resistance resists the flow, and how inductive reactance and capacitive reactance introduce delays in current response to voltage changes.
Explore how impedance, the total effect of these factors, affects current within a circuit, providing a comprehensive understanding of these essential electrical principles.
Join us on this journey to demystify the world of resistance, reactance, and impedance, and gain valuable insights into the behavior of electrical circuits. Don't miss out-watch now to enhance your knowledge of circuitry!

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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.

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Glad to help

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Yes- excellent explanation- much appreciated!

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

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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!

[@LemlemEnjerawerk]

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

[@joelonderee2872]

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]

You are welcome. Keep in touch.

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

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Thank you.

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to understand profoundly and intuitively@@mar-tin702

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[@Profmad]

Glad to help!

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Ideal balance of brevity and completeness. Bravo.

[@hwtans2717]

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.

[@paules0099]

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

[@rmcp5118]

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]

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]

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

[@_dheerajgupta]

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

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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!

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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!

[@sriramireddygangireddy8597]

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

[@VeritasEtAequitas]

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.

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

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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 👍

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

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Very clear explanations .

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

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

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Thank you, great and easy explanation !!!

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Well put and illustrated. Well done.

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[@ahmershaikh666]

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

[@TrionityIr]

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

[@Profmad]

Thank you.

[@mikejones-vd3fg]

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]

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.

[@TheMoeP]

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 🤣

[@Robby-Rob-Robertson-III]

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

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Very well explained Prof. Thank you.

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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

[@kalli71]

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

[@Profmad]

Awesome, thank you!

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Very clear. Thank you!!!

[@MitulShah2201]

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

[@kevinmclaren5517]

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

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I'm so glad!

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

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Perfect explanation

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

[@Profmad]

Thank you.

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why do you need an AC anlogy to date your brother?

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Glad it was helpful!

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

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Thank you soo much.

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[@thetechsavvyges]

Best analogy so far

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[@melbournecoarseanglers]

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.

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[@michaelhawthorne8696]

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...😏😂

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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!

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[@Profmad]

You're very welcome!

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