Why is electrical wiring usually made from copper and not silver?

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Copper is a better conductor

Copper is a better insulator

Copper is less expensive

Copper is non-magnetic

answer is C.

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Detailed Solution

Concept: Silver is the best conductive metal than copper but copper is mainly used for electrical wiring because copper is -
●       It's cheap
●       It's ductile
●       It's thermal resistant.
●       Makes the standard for the manufacture of electrical wires widely recognized.
And silver is
●       Stronger conductor
●       Non-magnetic
●       Costly material compared to copper
Hence, the correct option is 3.

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