Which of the following metals is most commonly used for electrical wiring due to its conductivity?

Copper is the most commonly used metal for electrical wiring due to its excellent electrical conductivity, which is essential for efficient energy transfer in electrical systems. Its conductivity allows for minimal energy loss as electric currents pass through it, making it an ideal choice for various applications, from household wiring to large power grids.

In addition to its high conductivity, copper is also highly ductile, meaning it can be easily drawn into thin wires without breaking. This property is important for manufacturing wires of various sizes and lengths. Furthermore, copper has good corrosion resistance, which contributes to its durability and longevity in electrical applications.

While other metals like aluminium can also be used for electrical wiring, they do not match copper's conductivity and physical properties. Aluminium has a lower conductivity, which often requires using larger gauge wires to carry the same current as copper. Zinc and bronze, while having their own properties and uses, are not typically used for electrical wiring due to their lower conductivity compared to copper.