how many times did he win nobel prize?
Twice - in 1956 and in 1972
John Bardeen
He is the only person to be awarded the Nobel Prize in Physics twice: first in 1956 with William Shockley and Walter Brattain for the invention of the transistor; and again in 1972 with Leon N Cooper and John Robert Schrieffer for a fundamental theory of conventional superconductivity known as the BCS theory.
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 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.
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John Bardeen [SEP] Introduction
John Bardeen (; May 23, 1908 – January 30, 1991) was an American physicist. He is the only person to be awarded the Nobel Prize in Physics twice: first in 1956 with William Shockley and Walter Brattain for the invention of the transistor; and again in 1972 with Leon N Cooper and John Robert Schrieffer for a fundamental theory of conventional superconductivity known as the BCS theory. The transistor revolutionized the electronics industry, making possible the development of almost every modern electronic device, from telephones to computers, and ushering in the Information Age. Bardeen's developments in superconductivity—for which he was awarded his second Nobel Prize—are used in nuclear magnetic resonance spectroscopy (NMR) and medical magnetic resonance imaging (MRI).