Question

copper is used to make electric wires and not the silver. why??

Answer 1

silver is not used to make electric wires as silver is very expensive

Answer 2

Both silver and copper are good conductors of electricity and can be used for making electric wires. But copper is used to make electric wires whereas silver is not. It is because:

1. Silver is much more expensive than copper. Hence it won't be economic to make silver wires.

2. Copper is available in plenty whereas silver is not.