In a standard single-phase system, what is the neutral conductor?

In a standard single-phase system, what is the neutral conductor?

• A. The return path for current in a balanced single-phase system, typically color-coded white.
• B. A protective device that opens circuits.
• C. A wire used for hot current.
• D. A neutral wire is not color-coded.

Answer: (C)

Neutral conductor in a standard single-phase system provides the return path for current, completing the circuit back to the source. It carries current from the load back toward the supply, and is typically color-coded white to distinguish it from the hot conductor. A protective device that opens circuits is something like a breaker or fuse, not the neutral itself. A wire used for hot current is the live conductor, not neutral. And saying a neutral wire is not color-coded conflicts with standard practice, since neutrals are marked white (or gray in some codes) to prevent confusion. So the correct concept is that the neutral serves as the return path and is color-coded white.

Neutral conductor in a standard single-phase system provides the return path for current, completing the circuit back to the source. It carries current from the load back toward the supply, and is typically color-coded white to distinguish it from the hot conductor. A protective device that opens circuits is something like a breaker or fuse, not the neutral itself. A wire used for hot current is the live conductor, not neutral. And saying a neutral wire is not color-coded conflicts with standard practice, since neutrals are marked white (or gray in some codes) to prevent confusion. So the correct concept is that the neutral serves as the return path and is color-coded white.