# AC circuit equations

__Inductive reactance__

__Capacitive reactance__

__Impedance in relation to R and X__

Z_{L}= R + jX_{L}

Z_{C}= R - jX_{C}

__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__