If a circuit is wired so that the electrons can only flow in one possible path, what type of circuit is it?

In a series circuit, the configuration allows electrons to flow through a single, unbroken path. If any component in this circuit fails or is disconnected, the entire flow of electrons is interrupted, stopping the current. This ensures that all components receive the same amount of current, demonstrating the characteristics unique to series circuits. In contrast, parallel circuits have multiple paths for electron flow, meaning even if one path is broken, the current can still flow through other paths. A combination circuit incorporates both series and parallel arrangements, while an open circuit indicates a break in the path that prevents any current flow. Thus, the defining feature of a single-path flow of electrons directly identifies the circuit as a series circuit.