|MadSci Network: Physics|
Hello William Of the metals you tested, copper is the best conductor. This because the electrons in the copper are more easily transferred from one atom to another. Electric current is based on the flow of electrons through the conductor. Copper is not the best conductor, however. Silver is better and Gold is better. These are expensive metals and are used in special applications only. There is also a group of materials that are specially created that are not conductors until certain impurities are added. Then they become very good conductors, better than any naturally occuring materials. Also, cooling materials down to near absolute zero (Kelvin) make some of them nearly perfect conductors. At such a low temperature the atoms no longer vibrate and electrons are free to move. I don't understand your experiment though. What did the wax melting prove? A better conductor generates less heat when carrying electrical current. Gus
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