Just started my AC theory classes and my teacher is pure trash. Thank you for spending the time on these videos, Joe. Seriously. You're the only reason I can start to understand this at all.
What if you have inductive reactance and capacitive reactance in the same circuit? Do you just do the same math but with capacitive reactance added into the equation? R+Xl+Xc?
Hi Joe. I'm currently studying to become an electrician here in Copenhagen Denmark. Im only three weeks in but I've been following your channel for a while and I'm about halfway though the AC theory playlist. I also did fill out the worksheet. I just want you to know that your work is greatly appreciated. I really enjoy learning from you. So a big thank you from across the small pond. Keep up the excellent work. // Martin
thank you joe due to your excelent efforts i am now doing lvl c&g and should carry it on to lvl 3 thank-you btw its the big hairy guy that chopped my thumb iff last year :) john.shields
@@JoeRobinsonTraining My question is do you have any videos regarding the phase vector for AC current and voltage Or any where I contact I can directly send you a question I really need some help
@@crack1d723 if you check my AC Theory playlist, there's content on there about phasor diagrams, but if you search for me on Instagram or Twitter, you can DM me on there.
It is realy very helpfull video and it is very important to understand where impedance come from(thank you very much )this has encourage me to understand the electricty as well as fysics.
I understand what's going on but remembering how the math is worked out is hard work. Do you have any sheets we can download so we can have a go at working things out? Great videos by the way.
Thanks and what a great question. I'm just mulling it over as I type, definitely not instantaneous, theoretically they could be peak but if they've come from real measurements most likely rms. Thanks for watching. 😊
@@JoeRobinsonTraining This is a great question. I was wondering the same thing, and then it came to mind that the multimeter does peak to rms conversion, doesn't it?
In theory, impedance are complex numbers having a purely reactance component along imaginary axis (to quantify capacitor and inductor effects) and a positive resistive component on real axis to quantify resistive effects. When expressed in ohms law it relates the behavior of current and voltage in terms of effect of circuit on magnitude and phase relationship for current and voltage at terminals. Also the voltages at sides of triangle are not physical instantaneous voltage but rather the amplitude of the sinusoid behavior that the voltage takes the form of over time. It's interesting how you've phase shifted / advanced the applied voltage as needed so that the resulting current waveform is a cosine. Probably so the in phase voltage drop across the resistor would lie along the real axis
@@bobbybenjani1978 the fundamental quantity in ac circuit analysis is the cosine function. The representation of cosine function in complex plane is the phasor that lies along real axis at a phase angle of 0. The complex number impedance for inductors , thru ohms law, will locally rotate a cosine (or any) current phasor 90 degrees to arrive at voltage drop phasor.
@@jimhenderson2308 I just bend a bit of conduit and run a few cables. And lights seem to turn on and off well enough. So I don’t really need that nonsense
@@bobbybenjani1978 It's not nonsense at all when you learn about electric circuits. Specifically relating to voltage drops and current in DC circuits. This is about how to find / calculate them in an AC circuit with reactance impedances (which involve phase shift between current and voltage drop). You relate to the implementation side of things. This is the abstraction side of things.
Just started my AC theory classes and my teacher is pure trash. Thank you for spending the time on these videos, Joe. Seriously. You're the only reason I can start to understand this at all.
Ah, you're welcome, glad the videos are helpful.
Me too. I swear colleges are fucking pointless
👀 AC theory 👏
Great video tutorial Joe, clearly explained at an elementary level 👍
Thanks Alan, hopefully it's back on track now! No Sunday names for a while? 👍
@@JoeRobinsonTraining No Joe, lol 😜
Thank you. very interesting.
Glad you enjoyed it. 👍
I have to do this for college but I have a feeling I’ll never use it again as a working electrician! It hurts my brain 😢
Yup, you're prolly right! 😂
What if you have inductive reactance and capacitive reactance in the same circuit? Do you just do the same math but with capacitive reactance added into the equation? R+Xl+Xc?
Wonderful as always 👍
💪👍
Thanks for your help! I was struggling with this in my text books. You’ve done a great job of explaining it in simple terms.
Thank you so much for the Super Thanks, that's really kind and much appreciated, so glad it helped. 😊
Superb.... Starting to understand things very well which remained confused for a very very long time. GOD BLESS YOU.
Thanks very much!
Hi Joe. I'm currently studying to become an electrician here in Copenhagen Denmark. Im only three weeks in but I've been following your channel for a while and I'm about halfway though the AC theory playlist. I also did fill out the worksheet. I just want you to know that your work is greatly appreciated. I really enjoy learning from you. So a big thank you from across the small pond. Keep up the excellent work. // Martin
Thanks for watching and commenting Martin, I'm so glad they're helping you out! 😊
Is the X divided by the R the X/R that is used for Zigzag transformers?
Fantastic video, very good explanation.
Ibew428 union 2nd year apprentice in california here. Thanks for all this videos
Glad they're helping! 😊
thank you joe due to your excelent efforts i am now doing lvl c&g and should carry it on to lvl 3 thank-you
btw its the big hairy guy that chopped my thumb iff last year :) john.shields
Good to hear from you John, hope you're keeping well!
good content,but whats up with the capacitor impedence
Hi, I'm not sure I understand the question?
@@JoeRobinsonTraining My question is do you have any videos regarding the phase vector for AC current and voltage Or any where I contact I can directly send you a question I really need some help
@@crack1d723 if you check my AC Theory playlist, there's content on there about phasor diagrams, but if you search for me on Instagram or Twitter, you can DM me on there.
You professional ❤❤
Very clear Impedance, please give an Idea about Positive and Negative Sequence Impedance. Nice work, a big fan!!!
It is realy very helpfull video and it is very important to understand where impedance come from(thank you very much )this has encourage me to understand the electricty as well as fysics.
I understand what's going on but remembering how the math is worked out is hard work. Do you have any sheets we can download so we can have a go at working things out? Great videos by the way.
Great set of videos Joe.Are the voltages in the triangle peak voltages,rms voltages or instantaneous voltages?
Thanks and what a great question. I'm just mulling it over as I type, definitely not instantaneous, theoretically they could be peak but if they've come from real measurements most likely rms. Thanks for watching. 😊
I don’t think it would matter as current changes proportionally and the triangle is also the power triangle (VxI).
@@stikndip that's a really good point. 👍
@@JoeRobinsonTraining This is a great question. I was wondering the same thing, and then it came to mind that the multimeter does peak to rms conversion, doesn't it?
You're the best
Aw, that's really kind, thank you. 😊
what would be the case when R and L are in parallel ?
Excellent stuff!
Thanks!
wow,,,excellent explanation
Excellent explanation Joe 👌
Thanks. You rock.
Thank you Joe 😊
In theory, impedance are complex numbers having a purely reactance component along imaginary axis (to quantify capacitor and inductor effects) and a positive resistive component on real axis to quantify resistive effects. When expressed in ohms law it relates the behavior of current and voltage in terms of effect of circuit on magnitude and phase relationship for current and voltage at terminals.
Also the voltages at sides of triangle are not physical instantaneous voltage but rather the amplitude of the sinusoid behavior that the voltage takes the form of over time.
It's interesting how you've phase shifted / advanced the applied voltage as needed so that the resulting current waveform is a cosine. Probably so the in phase voltage drop across the resistor would lie along the real axis
English please 🙏🏻
@@bobbybenjani1978 the fundamental quantity in ac circuit analysis is the cosine function. The representation of cosine function in complex plane is the phasor that lies along real axis at a phase angle of 0.
The complex number impedance for inductors , thru ohms law, will locally rotate a cosine (or any) current phasor 90 degrees to arrive at voltage drop phasor.
@@jimhenderson2308 I just bend a bit of conduit and run a few cables. And lights seem to turn on and off well enough. So I don’t really need that nonsense
@@bobbybenjani1978
It's not nonsense at all when you learn about electric circuits. Specifically relating to voltage drops and current in DC circuits. This is about how to find / calculate them in an AC circuit with reactance impedances (which involve phase shift between current and voltage drop).
You relate to the implementation side of things.
This is the abstraction side of things.