Open circuits are electrical pathways that are incomplete, meaning that the flow of electricity is interrupted. This can occur when a switch is turned off, a wire is disconnected, or a component fails. In an open circuit, no current flows, and devices connected to the circuit will not operate. In contrast to closed circuits, where electricity flows continuously, open circuits are essential for safety and control in electrical systems. They allow for the safe disconnection of power, preventing potential hazards. Understanding open circuits is fundamental in fields like electronics, engineering, and physics.