Question

Y For electric power transmission, copper or aluminium wire is used?​

Answer 1

(1) Copper and aluminium are good conductors of electricity. (2) Copper and aluminium have very low resistivity. Hence, when an electric current flows through a wire of copper or aluminium, heat produced is comparatively low. Therefore, for electric power transmission, copper or aluminium wire is used.

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Answer 2

Answer:

Copper and aluminium wire is used because it's electrical conductivity is more.

Explanation:

Silver has the highest percentage of conductivity of all elements with 105%. Since silver is costly it cannot be used for conductance over large area.

Copper which has 100% conductivity and aluminium - 60% conductivity

is used. Since it's cost is reliable