Neutral Wire - GCSE Physics Definition

A neutral wire is a crucial part of an electrical circuit that helps complete the circuit, allowing electricity to flow safely and effectively. In a household electrical system, the neutral wire carries the current back to the power source after it has passed through electrical devices like lights or appliances. This wire is typically coloured blue in the UK and works alongside the live wire, which carries electricity to the devices, and the earth wire, which provides a path for safety. Understanding how the neutral wire functions is important for ensuring that electrical systems work properly and safely in our homes.