Impedance

This video tutorial provides a basic introduction into impedance. Impedance is the opposition to the flow of AC where as resistance is the opposition to the flow of DC.


RC Circuits & Time Constants:

Inductors - How Do They Work?

RL Circuits - Inductors & Resistors:

How To Make an Electromagnet:

Homopolar Motor Compilation:

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AC vs DC:

RMS Voltage, Peak Current, & Avg Power:

What Is RMS Voltage?

Capacitive Reactance:

Inductive Reactance:

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Series RLC Circuits:

Resonant Frequency of LC Circuits:

AC Circuits - Mega Review:

Parallel RLC Circuits:

Power Factor - Reactive & Apparent Power:

Transformers - Physics Problems:

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Final Exams and Video Playlists:

Full-Length Videos and Worksheets:

[DanielPerol-euck]

Honestly, for as shitty as the internet can be, Im glad that it can be used in ways like this. Thank you for what you do Organic Chem Tutor.

[courseconceptsacademy]

Impedance approx. 664.402 ohms (error was R = 100 ohms instead of 400 Ohms), Rms current = 0.181A

[princedeux]

You are a hero 💯🙏🏽🙌🏽👍🏽. I used to hate this stuff, but ever since I started watching your videos I feel a lot more confident with the material. Thank you!!!!

[georgemichaelforever]

For everyone's reference the first example should have an impedance of 664.4 due to the resistor alue being 400 and not 100 ohms, hope this helps! the coressponding current value should be 0.181 A

[robertlafleur]

Hi, in your first example the resistor in the schematic is 400 ohms but you used 100 ohms in the calculations.Everything else is perfect.

[alessandrobaratto]

Thank you so much for sharing this video. I totally understood what impedance means and how it can be calculated.

[Coreyahno]

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“Watching your vids instead of going to class”
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Summary of the comments in literally every video. Seriously though, thank you for all that you do!

[georgesadler]

Professor Organic Chemistry Tutor, thank you for a short Introduction into Impendence in Applied/Engineering Physics. Impendence is really tied to AC Circuits. Professor Organic Chemistry Tutor, thanks to the viewers for finding and correcting the error(s) in this video.

[highseassailor]

Yup, I love you. Thank you for being a boss on all the levels.
So many would benifit from a basic understanding of electronics. And math. And chemistry. And. And. And...

[JH-uxre]

You’re the best professor I’ve had! My physics and chemistry classes simply waste my time!

[Luis-widn]

Thank you for this video. My basic electrical book didn't explain things in a way for me to understand the formulas. The definitions helped me out too. Thanks. 👍

[tenornegative]

I'm gonna get a 5 dollar an hour promotion at work thanks to this guy

[successthruknowledge]

Great job comparing and contrasting resistance, capacitive reactance, inductive reactance and impedence. I wish though he explained why the resonance frequency is important. At resonance, XL equals XC, meaning they cancel each other out. This leaves the impedance of the circuit to be purely resistive. As a result, the current that flows through the series RLC circuit is at its peak when it’s operating at its resonant frequency.

[tkdyt]

thank you for being straight to the point. This helps alot as i found it confusing to understand what my teacher was explaining in class lol

[ltwadley]

My instructor made my head hurt. So I came to this video. And I'm very grateful that I did.

[steadyeddy]

Yes an error--- 400/100 ohms
GOOD VIDEOS--- YOU DO A EXCELLENT JOB.
It intuitively seems to me that the resonant frequency should be a highly desirable state for any circuit. YES/ NO?

[ihabsglei]

5:36 When you can no longer read your own writing, then it's time to write more beautifully. 100 is wrong, it should be 400.^^

[acurara]

This is perfect, thank you. This will help me a lot in the test which is in 12 hours.

[ebi]

Never thought my Electrical Engineering course will be saved by an Organic Chemistry tutor.

[TuberKMT]

Excellent video! Made this really easy. Thanks!