Question

why we use copper instead of silver or silver is a better conductor of electricity?

Answer 1

Answer:

Even though Silver is a better conductor of electricity, copper wire is used as conduction in electricity because it has greater capacity for electrical conductivity as well as mechanical strength. It also has a high thermal coefficient of expansion

Answer 2

Silver also has the highest thermal conductivity of any element and the highest light reflectance. Silver is the best conductor because its electrons are freer to move than those of the other elements, thereby making it more suitable for the conduction of electricity and heat than any other element.