What is current flow?

Current flow refers to the movement of charge within a circuit, and in the context of electrical circuits, it is specifically the flow of electrons. Electrons carry a negative charge and are the primary charge carriers in conductive materials, such as metals. When a potential difference (voltage) is applied across a conductor, it creates an electric field that pushes the electrons, causing them to move and establish a current.

The flow of electrons is quantified in amperes (A), which is a measure of the amount of charge that passes through a point in a circuit per unit time. Understanding that current flow is primarily due to electrons is fundamental to grasping electrical concepts, as it explains how circuits function, how power is delivered, and how various electrical components operate. This knowledge is essential for anyone involved in electrical theory and its practical applications.