Inductors are passive electrical components that store energy in a magnetic field when electrical current passes through them. They oppose changes in current, which makes them essential for filtering and tuning applications in circuits. The behavior of inductors is characterized by their inductance, measured in henries, which determines how much energy they can store. Understanding the basics of inductors involves grasping their role in alternating current (AC) circuits, where they can affect phase relationships between voltage and current. Clarifying specific questions about inductors can lead to a deeper understanding of their function in electrical circuits.