The process by which electrons move in an electric circuit is called current flow. In a circuit, electrons flow from a region of negative charge (the cathode) to a region of positive charge (the anode) through conductive materials. This movement is driven by a voltage difference, or electric potential, across the circuit. The flow of electrons is essential for powering devices and conducting electricity. Current can be classified as either direct current (DC) or alternating current (AC), each having distinct characteristics in its flow.