| Voltage | Volts | V | E | Potential, think electrical pressure |
| Current | Amps | A | I | Amperage, the current like a river flow |
| Resistance | Ohms | Ω | R | Impedance |
| Conductance | Siemens | S | G | The inverse of Resistance |
| Wattage | Watts | W | W | Power |
| Reactance | Ohms | Ω | X | The resistance to varing current |
| Impedance | Ohms | Ω | Z | Combination of Resistance and Reactance |
| Capacitance | Farad | F | C | The ablility to hold a electric charge |
| Inductance | Henry | H | L | The impedance to varing current caused by a magnetic field |
| Frequency | Hertz | Hz | f | cycles |
| Charge | Coulomb | C | Q | Note: Do not confuse C for capacitance |