What is a common material used for electrical wiring?

Copper is a common material used for electrical wiring due to its excellent electrical conductivity, which allows electric current to flow through it with minimal resistance. This property makes copper an efficient choice for wiring applications, as it helps to reduce energy losses in the form of heat during transmission.

Additionally, copper's durability and resistance to corrosion contribute to its popularity in electrical installations, ensuring longevity and reliability in various environments. While materials like steel may be used in some specialized applications for structural support, they do not offer the same level of conductivity as copper. Rubber and plastic, on the other hand, are typically used as insulating materials rather than conductive materials. Insulation is essential to prevent electrical short-circuits and to protect users from electric shocks, but it does not conduct electricity. Therefore, copper is the primary choice when it comes to the material used for electrical wiring in most applications.