A wire is a single, usually cylindrical, strand of metal primarily used to conduct electricity or transmit mechanical signals. Wires are typically made of copper or aluminum due to their excellent electrical conductivity and ductility, allowing them to be easily drawn into long, thin strands. They are essential components in countless electrical and electronic devices, ranging from power cables and circuit boards to telecommunications systems and heating elements. Wires can be insulated with plastic or other materials to prevent short circuits and protect users from electric shock.
