What do you call a circuit that is complete, allowing electricity to flow?

A closed circuit is defined as a complete electrical circuit that allows current to flow without interruption. In a closed circuit, all the components—such as power sources, conductors, and loads—are connected in such a way that electricity can continuously move through the circuit. This is essential for powering devices like light bulbs or motors, as the flow of electricity provides the energy necessary for their operation.

The term "open circuit" refers to a circuit that is not complete, meaning that there is a break somewhere in the path, preventing current from flowing. A "short circuit" describes an unintended path in the circuit that bypasses the main load, often leading to excessive current flow that can damage components. Meanwhile, a "series circuit" refers to a specific arrangement where components are connected one after the other, providing a single path for current flow but does not inherently indicate whether the circuit is closed or open. Thus, the proper term for a functioning circuit that permits the flow of electricity is a closed circuit.