Which of the following represents correct order of conductivity in solids?
Conductivity of metals > semiconductors > insulators
Which of the following represent correct order of conductivity in solids ?
(a) Kmetals >> Kinsulators < Ksemiconductors
(b) Kmetals << Kinsulators < Ksemiconductors
(c) Kmetals.,Ksemiconductors > Kinsulators=zero
(d) Kmetals < Ksemiconductors > Kinsulators≠zero
Explain about conductivity in conductors, insulators, semiconductors(increase or decrease and why)when temperature and pressure changes?