Table 20.1 Resistivities of Various Materials Resistivity p (N-m) Resistivity p (N.m) Material Material Conductors Semiconductors Aluminum 2.82 x 10-8 Carbon 3.5 x 10-5 Copper 1.72 x 10-8 Germanium 0.5 Gold 2.44 x 10-8 Silicon 20-2300 Iron 9.7 x 10-8 Insulators 95.8 x 10-8 Mercury Nichrome (alloy) 10-1015 1013-1016 Mica 100 x 10-8 Rubber (hard) Silver 1.59 x 10-8 Teflon 1016 Tungsten 5.6 x 10-8 Wood (maple) 3 x 1010 "The values pertain to temperatures near 20 °C. "Depending on purity.

Table 20.1 Resistivities of Various Materials Resistivity p (N-m) Resistivity p (N.m) Material Material Conductors Semiconductors Aluminum 2.82 x 10-8 Carbon 3.5 x 10-5 Copper 1.72 x 10-8 Germanium 0.5 Gold 2.44 x 10-8 Silicon 20-2300 Iron 9.7 x 10-8 Insulators 95.8 x 10-8 Mercury Nichrome (alloy) 10-1015 1013-1016 Mica 100 x 10-8 Rubber (hard) Silver 1.59 x 10-8 Teflon 1016 Tungsten 5.6 x 10-8 Wood (maple) 3 x 1010 "The values pertain to temperatures near 20 °C. "Depending on purity.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 9CQ: In which of the three semiconducting materials listed in Table 20.1 do impurities supply free...

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