Q- Write an essay on superconductor for a grade 10 .
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Superconductivity is a set of physical properties observed in certain materials where electrical resistance vanishes and magnetic flux fields are expelled from the material. Any material exhibiting these properties is a superconductor. Unlike an ordinary metallic conductor, whose resistance decreases gradually as its temperature is lowered even down to near absolute zero, a superconductor has a characteristic critical temperature below which the resistance drops abruptly to zero. An electric current through a loop of superconducting wire can persist indefinitely with no power source.[1][2][3][4]
Superconductivity is a property displayed by certain materials at very low temperatures. Metals and their alloys have been known to be superconductive (ex. Tin, aluminum) other materials that have also been found to be superconductive are ceramics which contain copper and oxygen atoms. Superconductors have a special property which is that they can conduct electricity without resistance which means that energy is not lost. Once in motion, energy can flow through a closed loop of superconductive material forever. Superconductivity is the closest thing to perpetual motion.
b)Superconductivity is related to quantum mechanics because in order for superconductors to work you must get all electrons into a single quantum state. This…show more content…
B) High temperature superconductors are superconductors that work at temperatures well above absolute zero, up to 160K. High temperature superconductors were most commonly copper oxide layered with other materials, until iron based superconductors were found in 2008. The discovery of high temperature superconductors is significant because it allows for a larger range of technological applications of superconductors. Also knowing that superconductors can work at temperatures significantly higher than absolute zero, it gives the possibility that superconductors may be able to work at more practical temperatures and have more technological uses. 3. A) Superconductors are used in Maglev trains, trains which are propel by magnet levitation, magnetic resonance imaging also know as MRI, newer electrical generators, in superconducting wire used for transporting electricity, and also in rail guns.
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