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Question

Why is electrical wiring usually made of copper, but not silver?

A
Copper is a better conductor than silver.
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B
Copper is less magnetic compared to silver.
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C
Copper is less expensive than silver.
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D
Silver is an insulator.
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Solution

The correct option is C Copper is less expensive than silver.
Silver is a precious metal and it is the only metal with a higher electrical conductivity than copper. But, it is an expensive material when compared to copper. This is why electrical wiring usually made of copper, but not silver.

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