Which term describes a circuit that has only one path for current to flow?

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

Answer: (A)

The key idea is that current has a single path to follow. In a series circuit, components are connected end-to-end in one continuous loop, so there is only one path for current to flow. Because the path is shared, the same current goes through every component, and if any part of the loop is opened, the entire circuit stops conducting. This is different from a parallel circuit, which has multiple branches offering several paths for current. An open circuit describes a break that prevents current entirely, while a closed circuit means the path is complete but doesn't specify the number of paths. So, the term describing a circuit with only one path for current to flow is the series circuit.