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  Super conductors

Super conductors:

The capability of certain ultra cold substances to conduct electricity without resistance is termed as super conductivity. Superconductivity state is a state in which a material holds virtually zero electrical resistance. Substances containing this property are termed as super conductors.

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The super conducting transition temperature ‘Tc’ of a material is stated as a critical temperature at which the resistivity of the material is rapidly changed to zero. Therefore at that temperature a material is modified from normal material to superconductor.

At extremely low temperatures, vibration of the nuclei of some atoms slows down too much and they synchronize with the passing waves of electrons in a flow of electric current. Whenever this occurs, resistance to electric current disappears.

Application of superconductors:

1) This is a basis of new generation of energy saving power systems. Super conducting generators are smaller in size and weight whenever we compare with conventional generators. Such generators consume very low energy and therefore we can save more energy.

2) High efficiency ore separating machines might be built utilizing superconducting magnets.

3) Superconducting solenoids are utilized in Nuclear Magnetic Resonance Imaging equipment that is entire body scan equipment.

 

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