A circuit that has a complete uninterrupted path where current flows is called

• A. Open circuit
• B. Short circuit
• C. Series circuit
• D. Closed circuit

Answer: (D)

Current needs a complete loop to flow. When a circuit forms a continuous, unbroken path back to the power source, it’s a closed circuit. That uninterrupted loop lets electrons move through conductors and any load and return to the source, enabling current to flow.

If the path is broken, the circuit is open and no current flows. A short circuit refers to a path of very low resistance that bypasses the intended load, causing excessive current but not describing the need for a complete loop. A series circuit describes how components are connected in a single path, not whether the path is complete. The term that matches a complete uninterrupted path for current is closed circuit.