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A wire with 3 micron radius is made from 9 cm copper, 0.5 cm iron, and 11 cm copper all joined end to end (i.e., in series). Assume the joints are perfect and have no additional resistance. What is the total resistance of the wire

A wire with 3 micron radius is made from 9 cm copper, 0.5 cm iron, and 11 cm copper all joined end to end (i.e., in series). Assume the joints are perfect and have no additional resistance. What is the total resistance of the wire

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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A wire with 3 micron radius is made from 9 cm copper, 0.5 cm iron, and 11 cm copper all joined end to end (i.e., in series). Assume the joints are perfect and have no additional resistance. What is the total resistance of the wire?

Table 19-1 Electrical conductivity of selected materials at T = 300 K* Conductivity (ohm-1. cm-1) Conductivity (ohm-1. cm-1) Material Material Superconductors Semiconductors Hg, Nb;Sn YBa,Cu307-x MgB2 Group 4B elements Si Ge 4 x 10-6 Infinite (under certain conditions such as low temperatures) 0.02 Metals Compound semiconductors Alkali metals GaAs 2.5 x 10-9 Na 2.13 x 105 AIAS 0.1 K 1.64 x 105 Sic 10-10 Alkali earth metals Mg lonic Conductors 2.25 x 105 3.16 x 105 Indium tin oxide (ITO) Yttria-stabilized zirconia (YSZ) -104 <1014 Ca Group 3B metals Insulators, Linear, and Nonlinear Dielectrics 3.77 x 105 0.66 x 105 Al Polymers Polyethylene Polytetrafluoroethylene Polystyrene Ероху Ga 10-15 10-18 10-17 to 10-19 Transition metals Fe 1.00 x 105 Ni 1.46 x 105 10-12 to 10-17 Ceramics Group 1B metals Cu Ag Alumina (Al2O3) Silicate glasses Boron nitride (BN) Barium titanate (BaTiO3) C (diamond) 10-14 10-17 10-13 10-14 <10-18 5.98 x 105 6.80 x 105 Au 4.26 x 105
Transcribed Image Text:Table 19-1 Electrical conductivity of selected materials at T = 300 K* Conductivity (ohm-1. cm-1) Conductivity (ohm-1. cm-1) Material Material Superconductors Semiconductors Hg, Nb;Sn YBa,Cu307-x MgB2 Group 4B elements Si Ge 4 x 10-6 Infinite (under certain conditions such as low temperatures) 0.02 Metals Compound semiconductors Alkali metals GaAs 2.5 x 10-9 Na 2.13 x 105 AIAS 0.1 K 1.64 x 105 Sic 10-10 Alkali earth metals Mg lonic Conductors 2.25 x 105 3.16 x 105 Indium tin oxide (ITO) Yttria-stabilized zirconia (YSZ) -104 <1014 Ca Group 3B metals Insulators, Linear, and Nonlinear Dielectrics 3.77 x 105 0.66 x 105 Al Polymers Polyethylene Polytetrafluoroethylene Polystyrene Ероху Ga 10-15 10-18 10-17 to 10-19 Transition metals Fe 1.00 x 105 Ni 1.46 x 105 10-12 to 10-17 Ceramics Group 1B metals Cu Ag Alumina (Al2O3) Silicate glasses Boron nitride (BN) Barium titanate (BaTiO3) C (diamond) 10-14 10-17 10-13 10-14 <10-18 5.98 x 105 6.80 x 105 Au 4.26 x 105
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