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What is the best conductor of electricity?
Electricity and magnetism are closely connected. Almost all metals are good conductors of electricity, with copper being one of the best conductors of all. Glass, paper, rubber are the most common non-conductors or insulators.
Many practical applications have resulted from the utilization of the magnetic effect of an electric current.
These effects are used in motors, in most electric meters (ammeters, voltmeters and galvanometers), in electromagnets and in practically all electromechanical apparatus.
Rubber is.
Paper is.
Glass is.
Copper is.