Inductors
An inductor is a coil of wire that stores energy in a magnetic field when current flows through it. Inductance measured in henries (H).
- Resists changes in current: if current tries to increase, the inductor generates a voltage opposing that increase; if current decreases, it tries to maintain flow.
- Passes DC (eventually) but opposes changing AC.
- More turns of wire = stronger field = more inductance.
- Opposite behavior to a capacitor in many respects.