Selenium is a semiconductor with a black form that was used in xerography because it conducts electricity better when light is shined on it. However, use of this material is being phased out.
Selenium is the nonmetal that conducts electricity in its black form when light shines on it. But selenium is not a component of Xerox toner. Selenium is used in the older photoreceptor drums and belts that serve as the equivalent of film in a camera.
As a metal becomes colder, it generally conducts electricity more efficiently.
water
Silver
Silver
Probably Water, it conducts but doesnt send the current around a single direction, instead scatters it out.
A metal conducts heat better than a nonmetal. If you put a metal and a non-metal in boiling water for the same amount of time, the metal will be hotter than the non-metal. If you put a metal and non-metal in ice water for the same amount of time, the metal will be colder than the non-metal. Also, metal conducts electricity better than non-metal. You can use metal and non-metal wires to conduct a battery, and see which one works better.
The more pure the better. Pure copper.
Silver (Ag).
Yes. At normal temperatures copper conducts electricity better than almost any other metal; silver is slightly better.
Graphite is a conductor of electricity, but its conductivity varies greatly with direction: Conduction is high along the plane of the sheets of carbon atoms found in a single crystal of graphite, but much lower perpendicular to this plane.
No cloth is not a conductor of electricity .It is an insulainsulator