Al explains how Capacitive Reactance (Xc) and Inductive Reactance(Xl) and Resistance (R) behaves in Alternating Voltage Circuits. Series RL C Circuits & Parallel RL C Circuits are Explained. AL explains how to find total Impedance ( Z) of the circuit and how the phase angle are calculated with both current and Voltage. The student should have a understanding of ohms law and basic math skills to take full advantage of this course.

What is Inductive Reactance (XL) ?

Inductive reactance or simply reactance is not anything but the resistance of an inductive circuit. An inductor competes against the current in a coil which alters the direction and instantaneous magnitude. This opposition is comparable to resistance but always possesses a phase shift between voltage and current and dissipate zero. The abbreviation of Inductive reactance is XL, frequency of the signal will effect the value of XL.

What is Capacitance Reactance ?

For Capacitors in AC circuits. Capacitive reactance is given Symbol Xc. Then we can actually say that Capacitive Reactance is a capacitors resistive value that varies with frequency.

What is Z (Impedance)

Impedance (symbol Z) is a measure of the overall opposition of a circuit to current, in other words: how much the circuit impedes the flow of charge. It is like resistance, but it also takes into account the effects of capacitance and inductance. Impedance is measured in ohms (ohm).