| A | B |
| Inductor | A device that stores energy in a magnetic field |
| Henry | The unit for mesuring inductance |
| L | Represents inductance |
| Air core, Iron Core, & toroid core | Types of inductors |
| t = L/R | Time constant formula for inductance |
| 5 | The number of time constants to fully build up or collapse an inductive magnetic field. |
| LT = L1 + L2 + L3... | Inductive series formula |
| 1/LT = 1/L1 + 1/L2 + 1/L3... | Inductive parallel formula |
| 63.2% | Percent of max current for time constant one. |
| 36.8% | Percent of decay for current for time constant one |