Very low temperatures.
superconductors
At room temperature, both silver and copper are better electrical conductors than gold.At low temperatures (i.e. close to absolute zero), it's a very different story - many of the metallic elements, all the metalloids and many of the non-metals on the periodic table become superconductors and therefore have zero resistance. In all, 54 elements display superconductivity, although some require high pressure and low temperature.Strangely, Gold, silver and copper do not become superconductors under any conditions that have been attempted to date.
The resistivity of metals increases with temperature. Going the other way, some metals become superconductors if the temperature is lowered to a sufficiently low temperature.
Absorbed by them.
Why does OCC curve become flat after certain field current?
Low temperature is a factor to increase electrical conductivty.
when it is very cold(:
Only a few of the materials that have been supercooled have become superconductors, and not all of those are metals. There have even been some organic superconductors discovered.
Because at present all superconductors must be super-cooled in a coolant such as liquid nitrogen to become superconductors.
No, only certain materials can become superconductors. These materials form Cooper Pairs with their conduction band electrons at low temperature, making the electrons coherent (analogous to photons in a LASER beam). This coherence prevents resistance to current flow. Most insulators lack conduction band electrons. High temperature copper oxide ceramic superconductors are an exception as they lack conduction band electrons, but their copper oxide structure is highly distorted in a way that allows bound electrons to form Cooper Pairs.
superconductors
"Limestone, under certain conditions, may become marble". -Getis Introduction to Geography.
Many materials become more brittle in cold conditions.
Yes, subject to fulfiiiment of certain conditions
Most of the metals can be superconductors if you freeze them enough. They reach superconductivity bellow a temperature called the critical temperature (Tc). So the answer is: Freeze them below Tc. The higher the critical temperature, the better.
They used the same materials on other patients.
Silver, at normal temperatures. Superconductors are another matter - at very low temperatures many materials experience a great increase in conductivity.With resistivity expressed in nano-ohm⋅metres:Cu, copper = 16.78; Ag, silver = 15.87So, Silver by a small margin - about 6% more conductive than copper.