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What are the two most common materials used to make wires for electricity transmission?
Question

What are the two most common materials used to make wires for electricity transmission?

A.

Nichrome and constantan

B.

Manganin and constantan

C.

Copper and aluminium

D.

Tungsten and manganin

Correct option is C

The correct answer is (c) Copper and aluminium.
· Copper and aluminium are the two most common materials used for making wires for electricity transmission.
· They are preferred because of their excellent electrical conductivity and relatively low cost.
· Copper is known for its high conductivity, while aluminium is lighter and more cost-effective for long-distance power transmission.
Information Booster:
· Nichrome and constantan: Used in heating elements and resistors, not for general electricity transmission.
· Manganin and constantan: Used in precision resistors and temperature measurement devices, not for standard electrical wiring.
· Tungsten and manganin: Tungsten is used in light bulb filaments, and manganin in resistors, not for electrical wiring.

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