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.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Wiring, Installation and Safety
115 free Wiring, Installation and Safety MCQs from Electrical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Electrical Engineering questions like this
Electrical Engineering is on 2 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Wiring, Installation and Safety questions
Surface resistance of an insulating material is reduced due to the______________?
A relay is ___________switch?
Flame proof motors are used in_________________?
Spark plug makes use of which of the following materials for insulation ?
Due to which of the following reasons copper and aluminium are not used for heating elements ?
Which of the following materials is the best conductor of electricity ?