Which of the following represents correct order of conductivity in solids?
Which of the following represents correct order of conductivity in solids?
(i) Kmetals>>K insulators
(ii) Kmetals<
(iii) Kmetals > ksemiconductors>Kinsulators = zero
(iv) Kmetals < Ksemiconductors >Kinsulators ≠ zero
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