Conductor Color Coding: In typical electrical wiring, which color is commonly used to indicate a neutral conductor?

• A. Black
• B. Red
• C. Green
• D. White

Answer: (D)

Neutral conductors provide the return path for current, so they’re identified with a light, non-energized color. In typical wiring, that color is white (sometimes gray in older or specific setups). Hot conductors that supply power are colored black or red, signaling they are live, while green (or green with a bare insulation) is reserved for grounding. Keeping these colors consistent helps electricians recognize which wire carries current and which is safe to touch or connect, reducing shock or miswiring risk. The standard white neutral is also bonded to earth at the service equipment, which helps stabilize voltages. So, white correctly indicates the neutral in conventional wiring.