Q. 37 Note

Which of the following represents correct order of conductivity in solids?
A. kmetals >> kinsulators< ksemiconductors

B. kmetals<< kinsulators < ksemiconductors

C. kmetals ksemiconductors > kinsulators = zero

D. kmetals < ksemiconductors > kinsulators ≠ zero

Answer :

Solids have a wide range of electrical conductivities, and can be categorized into metals, insulators, and semiconductors. Metals are solids with conductivities between 104 and 107 ohm-1 m-1, with metals having conductivity in the order of 107 ohm-1 m-1 being good conductors. Insulators are solids with low conductivities and their conductivities range from 10-20 ohm-1 m-1 to 10-10 ohm-1 m-1. Semiconductors are solids with conductivities in the intermediate range, between 10-6 and 104 ohm-1 m-1. The conductivity of metals is many degrees higher than insulators, while semiconductors have higher conductivity than insulators but lower than metals. The correct answer is (i).

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Defects in solid | Solid StateDefects in solid | Solid StateDefects in solid | Solid State61 mins
Electrical & Magnetic PropertiesElectrical & Magnetic PropertiesElectrical & Magnetic Properties47 mins
Defects in solid | Solid State | Quiz TimeDefects in solid | Solid State | Quiz TimeDefects in solid | Solid State | Quiz Time49 mins
Interactive Quiz on close packing in solidsInteractive Quiz on close packing in solidsInteractive Quiz on close packing in solids45 mins
Packing efficiency and density | Interactive QuizPacking efficiency and density | Interactive QuizPacking efficiency and density | Interactive Quiz45 mins
Packing efficiency and densityPacking efficiency and densityPacking efficiency and density52 mins
Classification of solidsClassification of solidsClassification of solids65 mins
Close packing in solidsClose packing in solidsClose packing in solids46 mins
Quiz on Calculation of coordination number in solidsQuiz on Calculation of coordination number in solidsQuiz on Calculation of coordination number in solids38 mins
Interactive Quiz on classification of solids & packingInteractive Quiz on classification of solids & packingInteractive Quiz on classification of solids & packing53 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses