Copper wires are conductive materials made primarily of the metal copper. They are widely used in electrical systems to transmit electricity due to their excellent conductivity and flexibility. Copper wires can be found in various applications, including household wiring, electronics, and telecommunications. These wires come in different gauges, which indicate their thickness. Thicker wires can carry more current, while thinner wires are used for lighter loads. The insulation around copper wires helps prevent electrical shorts and protects against environmental factors, ensuring safe and efficient operation in various devices and systems.