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Name the charge carriers responsible for conduction of electricity in a metal object semiconductor, electrolytic cell, hydrogen discharge tube and superconductor.

Answer»

Solution :For a metal object that are free electrons . In case of a semiconductor there are free electrons and HOLES. In electrolytic cell positive and negative ions conduct electricity. A HYDROGEN discharge tube is filled with hydrogen gas as we know that in hydrogen atom the nucleus has one proton and there is one ELECTRON . so in hydrogen discharge tube, current is due to electrons and protons. superconductivity is one peculiar phenomenon at a very low temperature . in this state electron pairs are formed . Electrons start moving in pairs known as cooper pair. so conduction in case of a SUPERCONDUCTOR is through electron pairs or cooper pair. Electro pairs are continuously formed and then broken. it means TWO electrons drift together . but often electrons are exchanged among several pairs.


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