Why do we use copper and not silver or graphite for electrical wiring in our houses give a reason for each?

Why do we use copper and not silver or graphite for electrical wiring in our houses give a reason for each?

Unlike silver which in its natural state is a metal like copper, the form of graphite with very low resistivity to compare with copper is graphene. Technically its not a metal which can be extruded into wires but a few atoms thick crystallene structure that would be difficult to manufacture and use for wiring.

What is better for wires copper or graphite?

Copper is a far better conductor than graphite and is universally used for making wires. Graphite is more resistive and a poorer conductor.

Why graphite is not used to make electrical wires?

We all know GRAPHITE is a good conductor of electricity but it can’t use in electric wires , due to Graphite is non metals , shows brittle properties , and very soft { that’s why we use graphite in case of lubricant } , not malleable { most important reason } .

Why the copper preferred over aluminum for household wiring even through copper is more expensive?

Copper has a lower coefficient of thermal expansion. This parameter measures the tendency of a material to change in volume as a function of temperature. Copper’s lower value is very important for cables since it reduces the risks of sag and destructive forces in joints.

Why Aluminium now replace copper for use in electrical cables?

An aluminium wire have a 1.5 times larger cross section to pass the same current as a copper wire, but two times lighter. Weight is one of the most important parameters for high-voltage power lines that transmit power over long distances. Therefore, only aluminium wires are used in main overhead power lines.

Is Aluminium a good electrical conductor?

Copper, silver, aluminum, gold, steel, and brass are common conductors of electricity. The most highly conductive metals are silver, copper, and gold.

What metals are not good conductors?

Although metals are supposed to be good conductors of electricity and heat, metals like mercury, lead, alloys of iron and chromium, titanium and stainless steel are poor conductors when compared to silver, copper and gold.