The values of conductivity of some materials at 298.15 K in 3 Sm are 2.1 10 , 1.0 10 ,1.2 10, 3.91,1.5 10 , 3 1 10 ,1.0 10 . The number of conductors among the materials is ______.

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Prashant Kotian · Accepted Answer

Correct answer: .. :-    3 2 2.1 10 1.2 10 conductors at 298.15K 3.91 1 10 1 10 Insulator at 298.15 K 1.5 10 Semiconductor at 298.15 K 1 10               -1 Conductivity S m Therefore number of conductors is 4.

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