define conductor, insulater, semiconductor and superconductor with examples.
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Example of such materials are copper, silver, tap water, and generally most of materials we consider metals. Semiconductor is somewhere between conductor and insulator. Depending on the purity, voltage, and even temperature semiconductors can conduct electricity or not. ... Superconductors are normally conductors.
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In a conductor, electric current can flow freely.
In an insulator electric current cannot flow.
A superconductor is a material that acts strangely when cooled down to a certain temperature. When these materials reach their critical temperature they suddenly become perfect conductors.
A semiconductor is a material that has a conductivity somewhere between that of a conductor and an insulator
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