Question

For electric power transmission, copper or aluminium wire is used.

Hint:

Copper and aluminium are favored materials for electrical wiring due to their low resistance and high conductivity. Aluminium, being lighter and cheaper, is often used in overhead power lines.

Answer 1

Copper and aluminium are both commonly used in electrical power transmission due to their good electrical conductivity. Copper has a slightly better conductivity, but aluminium is lighter and cheaper, which makes it a popular choice for long-distance transmission lines.