| http://www.w3.org/ns/prov#value | - A highly conducting solid such as copper has a resistivity of 1.725 ?? 10???8 ??m (at 20??C) whereas a poorer conducting solid, such as carbon has a resistivity of 7.10???6 ??m.The resistivity of all pure metals increases with temperature whereas the resistivity of carbon, insulating materials and electrolytes decreases with temperature.
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