Live Wire - GCSE Physics Definition

In the context of GCSE Physics, a 'Live Wire' is a crucial component of an electrical circuit that carries current to appliances and fixtures throughout a building. It is typically made from copper and is coated in brown insulation in domestic wiring systems to distinguish it from other wires. The live wire is directly connected to the power supply source, and in a typical household it is responsible for supplying 230 V from the mains to the device itself. As it carries electricity, it is important to handle a live wire with extreme caution to prevent electric shocks or accidents.