One Wire Phenomenon wrote:In resonant circuits the resistivity (ohms) becomes zero therefor you are at super condutor conditions at that point. Basically what happens is your volts and amperage become equal called volts ampere reactant VAR system.You can look in any radio books and hardly any of them will give you an explanation for for that and I they do it's misleading in almost all cases. Basically what it means it your resistivity becomes zero at resonance which means you are at super condutor conditions at room temperature.
This is very confused. In resonant circuits, there always is some resistance because a perfect theoretical component does not exist. In every component, there is resistance, inductance, and capacitance. This works with complex numbers, or you may call it something different in your country, with resistance being the real part and the reactance due to the inductance or capacitance being the imaginary part. And both resistance and reactance are measured in ohms.
In every resonant system there is a phase difference between the voltage and the current. In a system with more inductance, voltage leads in front of current. And in a system with more capacitance, voltage lags vehind current. But the only way they could have equal phase is if there is no complex number in the impedance and the only component of the impedance is the real part resistance, which is not a resonant circuit. But no circuit is an exact perfect resistor, or exact perfect inductor, or an exact perfect capacitor, so the phase difference will not actually be exactly 90°. All of this will be very easy for you to understand if you look at voltage and current in what I believe is called the phasor model.

Since the impedance has both real and imaginary components, there is a different name for the power dissipated in each direction. The total power dissipation is measured in VA or Volt Amps, which includes both real and imaginary components. This is why you will see the power rating on all of your transformers shows you a number in VA Volt Amps instead of saying Watts, because it is both resistance and reactance. Purely real component power dissipation is measured in Watts being dissipated due only to resistance. And the imaginary component of power dissipation, due to reactance, is measured in VAR. Var is not an acronym for anything, it is a word just like how Watt is a word.


In a more inductive circuit, which most things are, you are wasting all of that power needed to maintain the magnetic field of the inductor, so the actual Watts you get out of the system will always be less than the power you put into it in VA. This is a lagging power factor. But in a more capacitive circuit, the capacitor stores voltage and can give out more power if it is needed, so you are running a leading power factor and you are able to [at one instant in time] draw more power out of it than what is being put in.