Mastering AC Circuit Equations: Impedance, Reactance & Resonance
Inductive Reactance
Capacitive Reactance
Impedance in relation to R and X
ZL = R + jXL
ZC = R - jXC
Ohm’s Law for AC
Series and Parallel Impedances
NOTE: All impedances must be calculated in complex number form for these equations to work.
Resonance
NOTE: This equation applies to a non-resistive LC circuit. In circuits containing resistance as well as inductance and capacitance, this equation applies only to series configurations and to parallel configurations where R is very small.
AC Power
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