Electrify Your 2026 FE Electrical & Computer Exam Prep – Power Up and Conquer!

In electrical systems, the classification of components as passive or active is crucial in understanding their function. A passive element is characterized by its inability to generate energy; instead, it can only store or dissipate energy. An inductor fits this description perfectly.

Inductors work by storing energy in a magnetic field when an electric current flows through them, but they do not produce energy on their own. This is a fundamental characteristic of passive components—they rely on the electrical energy supplied to them from an external source, rather than contributing additional energy.

In contrast, components such as batteries, generators, and power supplies are classified as active elements because they can generate or supply electrical energy. A battery stores chemical energy and converts it into electrical energy, a generator converts mechanical energy into electrical energy, and a power supply provides power to a circuit. Understanding these classifications helps in analyzing and designing electrical circuits effectively, as the interaction between passive and active components is key to how electrical systems operate.