- An inductor is a device that only has a potential across it when there is a change in current. An inductor generates a magnetic field if you have a change in current. With a constant current, the inductor does nothing. No potential difference no change in current and vise versa
- The sign of the potential drop is in such a way as to oppose the change. The inductor attempts to “maintain” the current as it was previously.
- Increasing current ⇒ negative potential and vise versa