Question

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

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

Answer 1

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.