Question
Mon June 13, 2011 By:

what are super conductors ? please give some examples

Expert Reply
Mon June 13, 2011
Some Metals or alloys; when cooled to very low temperatues (close to absolute zero) offers zero resistance path to the current. Such substances which completely loose their resistance at particular low temperatures are refered to as superconductors. 
 
 
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Some examples are Mercury, Niobium-Tin, Lanthanum-Barium-Copper Oxide, and Yttrium-Barium-Copper Oxide.
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