# 1.08: AC Circuit Equations

- Page ID
- 2031

##### 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