What type of circuit allows power to flow in one path only?

A radial circuit is characterized by having a single pathway for electricity to flow from the source to the load. In this type of circuit, power is distributed to various outlets or devices along one main path, meaning that if any single point in the circuit fails, the entire circuit can be interrupted. This design is simplest and most commonly used in electrical systems, particularly in residential wiring, where a branch circuit runs directly from the panel to a designated point without redundancy or alternative paths for the electricity to travel.

In contrast, distributed circuits, loop circuits, and mesh circuits introduce alternative pathways, enhancing reliability or enabling more complex routing of electricity, but they do not restrict power flow to a single path like a radial circuit does. Understanding the distinction between these circuit types is crucial for grasping electrical distribution principles and designing safe, efficient electrical systems.