Substances through which electricity can flow easily and have low resistance are called conductors. Generally all metals are more or less electrically conductive. In addition to metals, soil , animal bodies , charcoal, etc. are well conductive. In some metals, the electron charge is not limited to a specific part. All of these substances have a large number of free electrons, and if a potential difference or electrical potential is created by using them as conductors of electricity from the outside, those free electrons can get excited and move freely in certain orbits. All these metals act as conductors. Requirement to have the following properties of electrically conductive material- (a) Low quality relative resistance. (B) Low thermal coefficient. (C) Corrosion resistance. (D) Tolerance. (E) Flexibility. Superconducting materials include silver , copper , silver-copper alloys , lead , aluminum , zinc , nickel , lead , German silver , brass , lahea , platinum , phosphorus , bronch , dye , cadmium , manganese , platinum and.