- #1
IssacBinary
- 93
- 0
Im having a really hard time what the phase shifts mean in real life in a circuit. I understand them mathematically but not in physicality, mainly because I can't find any explanation.
Now I understand that as current flows through a capacitor voltage builts up. So at max current there is 0 voltage and then voltage builds and current decreases. I understand that, and the 90 degress lag the voltage has IN the capacitor.
I also understand reactance. In the case of the inductor. The self EMF it produces in the opposite direction of the voltage cancel out to leave a resultant voltage and thus a less current in the circuit making it seem like the inductor is acting as a resistor of a certain OHMs at a specific frequencies.
But I don't see how the self EMF from the inductor or the discharge from the capacitor, while it creates the effect of a resistor actually changes the phase of the current in the circuit with respect to the source. I see how it can be reduced...so the real part of impedance, but now how the phase part is create physically and why.
But like I said I understand the phase inside the capacitor and inductor, just not how it effects the over all picture.
Now I understand that as current flows through a capacitor voltage builts up. So at max current there is 0 voltage and then voltage builds and current decreases. I understand that, and the 90 degress lag the voltage has IN the capacitor.
I also understand reactance. In the case of the inductor. The self EMF it produces in the opposite direction of the voltage cancel out to leave a resultant voltage and thus a less current in the circuit making it seem like the inductor is acting as a resistor of a certain OHMs at a specific frequencies.
But I don't see how the self EMF from the inductor or the discharge from the capacitor, while it creates the effect of a resistor actually changes the phase of the current in the circuit with respect to the source. I see how it can be reduced...so the real part of impedance, but now how the phase part is create physically and why.
But like I said I understand the phase inside the capacitor and inductor, just not how it effects the over all picture.