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P-1 Effects of electric current — Science STD 10 — Question

Maharashtra BoardEnglish MediumSTD 10ScienceP-1 Effects of electric current2 Marks
Question
For electric power transmission, copper or aluminium wire is used.
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Answer

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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