Due to which of the following fact, in India, aluminium is replacing copper ?
Correct answer: B. Aluminium is available in plenty, cheaper and lighter than copper
- A. Aluminium is more ductile and malleable than copper
- B. Aluminium is available in plenty, cheaper and lighter than copper
- C. Aluminium has lower resistivity than that of copper
- D. Aluminium has less temperature co-efficient than copper
Explanation
Aluminium is widely used instead of copper because it is more abundant, cheaper, and much lighter, although its resistivity is higher. The options claiming lower resistivity or a lower temperature coefficient are therefore incorrect.
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