Reactance like resistance provides an impediment to the flow of current, but unlike resistance is dependent on the frequency of the current
If a DC current is applied to a capacitor a transient current flows but stops when the potential difference between the conductors equals the potential of the source
The capacitance measured in Farads (F) is equal to the amount of charge on either electrode in Coulombs divided by the potential difference between the electrodes in volts - 1 Farad = 1 coulomb/volt
DC current will not flow “through” a capacitor - AC current will and the higher the frequency the better the conduction
In a circuit that contains both inductance and capacitance, one cancels the other out
The combined effect of resistance, inductive reactance and capacitive reactance is referred to as impedance (Z) of the circuit
Impedance is not the sum of resistance and reactance
