Question

Sliver is very good conductor but still it is not used in electric wires, why?

Answer 1

silver is not used in electric wires because it is very expensive and another reason is that if silvers are used in electric wires no silver will left for making jewelry and other expensive tnings

Answer 2

the reasons r:-
a Silver is hard. b Silver is too shiny. c Wires made from silver are likely to bend. d Wires made from silver are not likely to bend.
e.Even though silver is the best conductor of electricity, it is extremely expensive. Thus silver is not used to make electical wires. 
hope this helps