Question

why is copper used for our wiring our houses

Answer 1

Because aluminium wire resists the electricity much because of its resistivity compared to copper

Answer 2

hi!
1)Copper is a metal which is the best heat and electricity conductor.

2)Copper has almost free charge carriers that can be easily accelerated by a potential difference.

3)Hence,
Copper is used in the wiring of the houses.
_____________________________
$hope \: this \: helps$