Happy Veterans Day to you Paul and all those who have served. Great topic, I actually just watched a video about this from "Applied Science " YT channel.
So basically you explained the difference between AC and DC voltage, right? I expected the resistance/impedance not to alter AC to DC vice versa. Its just the name of a resistors function for DC that are called resistor and impedance for AC?
No I would agree with other commenters that your really didn't explain the difference o r even mention the formula for Z. I really appreciate the time you have taken out to try and teach but it almost sounded like you were speaking to hear yourself speak..not that it is a bad thing ...the Topic you chose is a great idea to talk about but I wish you were a little more informative..Sorry if I sound patronizing but I am giving my honest assessment as I saw it.
Paul, great teacher as you are and one people 'warm' to 🤗 Is it possible (and how) to ask you questions or how to explain something? I mean youtube comments section maybe not the place.
Potato, potatoe 🥔 It's just a variable. But from what I've gathered, U is a less used variable so it makes it easier to work with considering V could also be velocity or volume. Not to mention when working with units as V could be either the variable or the unit of measurement and you might have a brain fart and cancel them out or combine them. A simplistic example: U=5V Is not as confusing as V=5V Which would in turn (wrongly) be V/V=5 and we know that 1=5 is not true. Might seem dumb in this example but imagine having to keep track of them in more complex problems!
I have always been trying to wrap my head around impedance. From what I have gathered so far, there are at least 3 different contexts for impedance: #1 one that is more historical and deals with driving and matching loads, #2 one that has derived from circuits getting smaller and smaller and finally #3 one that facilitates digital logic by allowing logic chips to remove their influence on circuits (see #2). Trying to track down a fundamental definition for impedance is a rabbit hole: impedance is the frequency domain ratio of voltage to current --- the phase and magnitude of impedance is determined by resistance and reactance --- ideal resistors have no reactance ... and ideal capacitors and inductors have no resistance (no such thing as ideal) -- finally, capacitive reactance is the opposition to change of voltage and inductive reactance is the opposition to change of current. Oh my brains hurt!! 🤕😂
I understand people respect and like what he's saying but I'm compelled to honestly say this was torture to watch, with all the pauses in between, and the explanation was lacking.
What? You do not even come up with a definition of the term "impedance". Also you do not tell people what ω is. You just use it. Then you simply say that you can plot something (something you have not defined) as a vector. Many of your videos are like this. They sound like you're reading abridged sections from a bad text book.
A bit late to the party with this but if you check out 'DrPhysicsA' video on impedance from 2013, you will see this is a carbon rip off, hence why it sounds like it does!
Happy Veterans Day to you Paul and all those who have served. Great topic, I actually just watched a video about this from "Applied Science
" YT channel.
I love AS. Ben is a true genius.
Goddamnit, I can't believe I've been studying electronics for years and just not realized that impedance is only in AC circuits.
You didn’t mention the difference yet
The world's best teacher thanks sir
I really enjoy the math explanation. Hey, you served in the Navy. Thank you for your service. My 3 uncles served in WWll, (Army).
Thanks for good explanation!
Thank you for thanking our veterans
So basically you explained the difference between AC and DC voltage, right? I expected the resistance/impedance not to alter AC to DC vice versa. Its just the name of a resistors function for DC that are called resistor and impedance for AC?
No I would agree with other commenters that your really didn't explain the difference o r even mention the formula for Z. I really appreciate the time you have taken out to try and teach but it almost sounded like you were speaking to hear yourself speak..not that it is a bad thing ...the Topic you chose is a great idea to talk about but I wish you were a little more informative..Sorry if I sound patronizing but I am giving my honest assessment as I saw it.
Hi Paul, Happy Veterans Day and thank you for your service.
Good stuff Paul.And a very happy Veterans day to you and all of us who wore the uniform!
Thanks George.
Thanks for sharing. 👍
Really like your explanations of the theory, you make it simple too understand. Btw Ex royal navy here.
Thank you. Always good to hear from another mariner.
Thanks Paul.
Paul, how would you apply this to amateur radio? Most of the radios, coax, and antennas are 50 ohm impedance but sometimes 75 ohm.
Does impefance change with frequency?
Kevin Roach what’s impefance?
Thanks for the video and funny thing is I am watching this thing on Veteran's day in 2022
My dad was air force in the second world war. That's the three services covered! I thought I'd done with the maths when I left college! ;-)
Thinking of you and the fallen on this day and on every other day, we owe so much.
Thank you
More AC theory please
Paul, great teacher as you are and one people 'warm' to 🤗 Is it possible (and how) to ask you questions or how to explain something? I mean youtube comments section maybe not the place.
very helpfull, thank you :)
Isn't U usually used for voltage variables instead of V?
Potato, potatoe 🥔
It's just a variable. But from what I've gathered, U is a less used variable so it makes it easier to work with considering V could also be velocity or volume.
Not to mention when working with units as V could be either the variable or the unit of measurement and you might have a brain fart and cancel them out or combine them.
A simplistic example:
U=5V
Is not as confusing as
V=5V
Which would in turn (wrongly) be V/V=5 and we know that 1=5 is not true.
Might seem dumb in this example but imagine having to keep track of them in more complex problems!
Thank you from a veteran. Now for all the basshead clampers out there please calculate true wattage on speaker audio wire! LOL!!!!
I have always been trying to wrap my head around impedance. From what I have gathered so far, there are at least 3 different contexts for impedance: #1 one that is more historical and deals with driving and matching loads, #2 one that has derived from circuits getting smaller and smaller and finally #3 one that facilitates digital logic by allowing logic chips to remove their influence on circuits (see #2). Trying to track down a fundamental definition for impedance is a rabbit hole: impedance is the frequency domain ratio of voltage to current --- the phase and magnitude of impedance is determined by resistance and reactance --- ideal resistors have no reactance ... and ideal capacitors and inductors have no resistance (no such thing as ideal) -- finally, capacitive reactance is the opposition to change of voltage and inductive reactance is the opposition to change of current. Oh my brains hurt!! 🤕😂
Overly simplified but just think of impedance as AC resistance that's dependent on frequency.
Happy Veteran's Day to you also.
Thank you....
I understand people respect and like what he's saying but I'm compelled to honestly say this was torture to watch, with all the pauses in between, and the explanation was lacking.
Hi Paul. RU okay? We have not seen a post in a while and we worry about you (your heart and all).
Yes, how are you, Paul?
Hello, and thanks for checking on me. I was in the hospital fora few days. Ill have a new video out Monday.
Hello, and thanks for checking on me. I was in the hospital fora few days. Ill have a new video out Monday.
More videos of AC-Networks 😊
What’s the difference between resistance and futility?
Nothing, resistance is futile.
Never forget. Thank you sir.
p.s. I hate impedance. 😂
👍
Nice voice
What? You do not even come up with a definition of the term "impedance". Also you do not tell people what ω is. You just use it. Then you simply say that you can plot something (something you have not defined) as a vector. Many of your videos are like this. They sound like you're reading abridged sections from a bad text book.
A bit late to the party with this but if you check out
'DrPhysicsA' video on impedance from 2013, you will see this is a carbon rip off, hence why it sounds like it does!
Lose weight and you won't die from heart failure please!!!!
Thank God! You just cured congestive heart failure. Where do I mail your Nobel prize in medicine doctor?