and what is it?
A set of physical properties observed in certain materials where electrical resistance vanishes and magnetic flux fields are expelled from the material.
Superconductivity
Superconductivity is a set of physical properties observed in certain materials where electrical resistance vanishes and magnetic flux fields are expelled from the material.
what is distributed-element circuit? They are electrical circuits composed of lengths of transmission lines or other distributed components. what are some active components in it? diodes, transistors mention a few of the circuit's disadvantages? It takes up more space than lumped-element circuits and is problematic in hand-held mobile devices which has limited space. what is the second active component? It is a semiconductor device used to amplify or switch electronic signals and electrical power. how is it in comparison to the vacuum tubes? UNANSWERABLE what are its various types? MOSFET (metal–oxide–semiconductor field-effect transistor) what problems are faced during transistor's naming? With so many independent naming schemes, and the abbreviation of part numbers when printed on the devices, ambiguity sometimes occurs. when was the first transistor developed? 1947 in which lab, or, in which place was it developed? Bell Labs who was the person that developed it? John Bardeen and Walter Brattain what was the relationship between xerox and the first person? Bardeen was also an important adviser to Xerox Corporation. state a theory proposed by him? BCS theory what is that theory about? Superconductivity
wiki:25688486
Superconductivity [SEP] Introduction
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. The superconductivity phenomenon was discovered in 1911 by Dutch physicist Heike Kamerlingh Onnes. Like ferromagnetism and atomic spectral lines, superconductivity is a phenomenon which can only be explained by quantum mechanics.