An example : (2+3j)(3+2j)=13j. So the real part of the product (2+3j)(3+2j) is zero, but (2+3j) is not equal to zero, nor (3+2j). So At 11:15 , the reason of why the some of phasors is equal to zero deserves a better explanation. Regardless of that, it is a good video; thank you very much !
A phasor is a vector in the complex plane with a magnitude of Vo and an angle φ. The Re(Vo) is a different vector on the real axis with a different magnitude. So your final equation is correct. But the actual KVL must be Vo+V1+V2+V3=0
Everything you did was in the time domain. Everything in the example has the same frequency. I don't see why you said frequency domain at all. Frequency domain analysis should apply when using Bode or Nyquist plots, or Laplace Transforms. Another thing. KVL applies instantaneously, as well as to entire AC cycles. It is enough to say that if it applies to every instant, then by definition it applies to whole or partial cycles, or even aperiodic forcing functions. In other words, you don't need to re-learn KVL for AC systems.
I feel as though you could've cut off at least a minute of the video by writing "Sigma(V_i...)" instead of each term directly. Just creative criticism. Good video regardless.
Agreed. The faster the better, and watching these terms being written out felt laborious. I did learn something here though, so a good video nonetheless!
there's this thing called a scroll bar, maybe you've heard of it. it has the magic ability of letting you skip the parts of the video you don't need to watch
An example : (2+3j)(3+2j)=13j. So the real part of the product (2+3j)(3+2j) is zero, but (2+3j) is not equal to zero, nor (3+2j). So At 11:15 , the reason of why the some of phasors is equal to zero deserves a better explanation. Regardless of that, it is a good video; thank you very much !
A phasor is a vector in the complex plane with a magnitude of Vo and an angle φ. The Re(Vo) is a different vector on the real axis with a different magnitude. So your final equation is correct. But the actual KVL must be Vo+V1+V2+V3=0
Everything you did was in the time domain. Everything in the example has the same frequency. I don't see why you said frequency domain at all. Frequency domain analysis should apply when using Bode or Nyquist plots, or Laplace Transforms.
Another thing. KVL applies instantaneously, as well as to entire AC cycles. It is enough to say that if it applies to every instant, then by definition it applies to whole or partial cycles, or even aperiodic forcing functions. In other words, you don't need to re-learn KVL for AC systems.
I feel as though you could've cut off at least a minute of the video by writing "Sigma(V_i...)" instead of each term directly.
Just creative criticism. Good video regardless.
Agreed. The faster the better, and watching these terms being written out felt laborious.
I did learn something here though, so a good video nonetheless!
there's this thing called a scroll bar, maybe you've heard of it. it has the magic ability of letting you skip the parts of the video you don't need to watch
Church hopes law
Second
first