Question

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

Answer 1

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(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.

Answer 2

Explanation:

Question :-

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

Answer :-

1. Copper and aluminium contain large number of free electrons.

2. These free electrons can conductor easily.

3. This results into copper and aluminium having move throughout low values of resistivity.

4. Thus, are conductors resistance to the flow of current.

Hence, aluminium and copper are used for electric transmission.