What is a common application of an inductor in electrical circuits?

An inductor is commonly used for energy storage in electrical circuits. This component stores energy in its magnetic field when an electric current passes through it. The ability to hold energy makes inductors crucial in applications where energy needs to be temporarily stored and then released.

When the current flowing through an inductor changes, it generates a voltage that opposes the change according to Lenz's Law, effectively keeping the current flowing even when the source is removed or interrupted. This property is utilized in various applications including power supplies, where inductors smooth out voltage fluctuations and maintain a steady current.

In contrast, while inductors can also play roles in voltage regulation and signal processing, their primary and most fundamental application is in energy storage. Light dimming does not typically involve inductors but rather resistive methods for controlling the intensity of light. Understanding this primary function helps clarify the versatile uses of inductors in different electrical circuit designs.