A cylindrical wire has a length of 2.80 m and a radius of 1.03 mm. It carries a current of 1.35 A, when a voltage of 0.0320 V is applied across the ends of the wire. From what material in Table 20.1 is the wire made?

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Table 20.1 Resistivitles of Varlous Materlals Resistivity ρ (22 m) Resistivity ρ (22 m) Material Material Conductors Semiconductors 3.5 x 10 0.5h 20-2300 Aluminum Copper Gold Iron Mercury Nichrome (alloy) Silver Tungsten 2.82 X 10- 1.72 X 10-8 2.44 X 10- 9.7 X 10-8 95.8 X 10 100 X 10 1.59 x 108 5.6 X 108 Carbon Germanium Silicon Insulators Mica Rubber (hard) Tefion Wood (maple) 1011-1015 1013-1016 1016 3 x 101 The values pertain to temperatures near 20 ℃- Depending on purity.