i was thinking copper
Copper is the most common.
Copper, and to a lesser extent gold, are used in conductors.
Metal is a very good conductor of electricity. Rubber doesn't conduct electricity.
plastic
Metal wires are single strands of flexible material often used to carry electrical currents, telecommunication signals, and hold mechanical loads.
One solution that will not conduct electricity is pure water. The reason is that it needs a dissociated ionic compound that can mix with water when detached, and then it will be unable to conduct.
Conduct electricity, of course. They connect signals from point to point in the circuit like in all electronics.
Copper (Cu) is the most common metal used in conducting wire. If you have the money the best conductor (excluding super cooled super conductors) would be pure silver (Ag).
The filament is made of tungten and these 'wires' (filament) conduct electricity.
Copper is a metal and as such it can conduct electricity very well. Additionally, copper is a very good conductor off heat when compared to the more abundant metals such as aluminium.
Quartz.
The ones that conduct electricity