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For electric power transmission, copper ...

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

Text Solution

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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.
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  • Consider the following statements about aluminium: (1) It is the third most abundant element in the earth's crust (2) It is used to make overhead electric transmission lines (3) Aluminium vessels cannot be used for making alkali solutions. Of these statements, the correct ones are

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