Essential Chemistry for IGCSE - Electricity And Chemistry (Section 1 - No. 3)
What is the main reason for using aluminium in high-voltage power lines?
It is a good conductor of electricity.
It has a low density.
It is resistant to corrosion.
It is easily extracted.
Explanation
Aluminium combines good conductivity, low density and corrosion resistance which are all ideal for high voltage cables.
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