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

Explanation

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.