Why use copper wire as wire?
Copper is one of the materials with higher conductivity and acceptable cost
In low cost non rare metals, the resistivity is minimal
Before the silver is also useful! But the cost is too high! With aluminum wire, melting point is low, not suitable for long-term use, with steel wire, too many impurities, long lines, it is easy to loss of electricity! Copper wire! Good electrical conductivity! Low cost, high heat resistance! So choose copper wire
