| A | B |
|---|
| Phasor | Rotating vector |
| Inductive reactance | Proportional to frequency |
| Capacitive reactance | Inversely proportional to frequency |
| U.S. Household frequency | 377 rad/s or 60 Hz |
| Inductive circuit | Voltage leads current |
| Capacitive circuit | Current leads voltage |
| Impedence | AC resistance |
| V(rms) | Used with Ohm's Law |
| Resistive AC circuit | Voltage in phase w/ current |
| Average of sinusoidal voltage over one period | Zero |
| Inductor | AKA "Choke" |
| Capacitor | Blocks low frequency |
| Resonance | Allows tuning of radios and TVs |
| Series RCL circuit | Appears as short circuit at resonance |
| Parallel RCL circuit | Appears as open circuit at resonance |
