What is the definition of inductance?

Inductance is defined as the property of an electrical component, typically a coil or inductor, that opposes changes in the current flowing through it. This occurs due to the magnetic field created by the current; when the current changes, the magnetic field also changes, inducing a voltage that opposes the initial change according to Lenz's law. This characteristic makes inductors essential in various applications such as filters, transformers, and in energy storage systems in power supplies.

The correct answer emphasizes how inductance serves to resist changes in current, which is fundamental to understanding inductive components in circuit design and behavior.