Due to the particular structure of the atoms of these materials, conductors allow the electric current to flow. The conductor's outermost electron is loosely bound and when an electric charge is applied, it will freely pass through the material. Metal is the most common material used as the conductor for electricity. The element with the best conductivity is platinum. Since silver is costly to be used in electrical circuits, copper is mostly used in electrical wiring. Materials that have zero resistance are superconductors. They conduct electricity far better than normal conductors. At a very low temperature, all superconductors found by researchers become superconductors (-2340℃). Glass, plastic, paper, etc. are some examples of insulators. One of the good electricity conductors is water. However, you can apply some salt to it if you want to improve its conductivity.