Which of the following arrangements is correct on the basis...

Which of the following arrangements is correct on the basis of conductivity of materials ?
(a) silver $>$ copper $>$ aluminium $>$ tungsten $>$ water
(b) silver $>$ aluminium $>$ copper $>$ water
(c) copper $>$ silver $>$ tungsten $>$ water
(d) water $>$ silver $>$ tungsten $>$ water

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Key Concepts

Electrical Conductivity

Electrical conductivity is a measure of a material's ability to allow the flow of electric current. It is an intrinsic property determined by the nature of the charge carriers and their mobility in a substance. Metals typically exhibit high electrical conductivity because they have free electrons, whereas non-metallic materials like water usually have much lower conductivity unless they are ionized.

Metallic Conductivity Trends

Within the classification of metals, conductivity can vary based on their electron configurations and lattice structures. Commonly, silver is recognized as having the highest conductivity, followed closely by copper, with aluminium and tungsten exhibiting lower values. This trend is significant for selecting materials in electrical applications and aids in comparing their performances.

Conductivity in Non-metallic Substances

Materials such as water, despite sometimes being a medium for conducting electricity when containing ions, generally have very low conductivity compared to metals. In discussions comparing metals with water, water is usually placed at the end of the order due to its much inferior ability to conduct electricity.

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