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A rod of pure silicon has a diameter of 2.44 cm and a length of 23.7 cm. The data provided in the table may be useful. Conductivity (σ), resistivity (p), and temperature coefficient of resistivity (a) at 20°C for select materials. material σ (1/(Q2. m)) p (.m) a ('C-¹) conductors silver 6.29 × 107 ☑ 1.59 × 10-8 3.8 × 10-3 copper 5.95 × 107 1.68 × 10-8 3.9 × 10-3 gold 4.10 × 107 2.44 × 10-8 aluminum 3.4 × 10-3 3.77 × 107 2.65 × 10-8 3.9 × 10-3 tungsten 1.79 × 107 ☑ 5.60 × 10-8 4.5 × 10-3 iron 1.03 × 107 9.71 × 10-8 6.5 × 10-3 lead 0.45 × 107 22.0 × 10-8 constantan 0.20 × 107 49.0 × 10-8 0.03 × 10-3 mercury 0.10 × 107 98.0 × 10-8 0.9 × 10-3 nichrome 0.10 × 107 100. × 10-8 0.4 × 10-3 semiconductors carbon (pure) (Values for semiconductors depend strongly on type and amount of impurities.) 2.86 × 10-6 germanium (pure) silicon (pure) 3.50 × 10-5 ☑ 0.60 2300 -0.5 × 10-3 -0.048 -0.075 If a voltage of 1.78 kV is applied across the ends of the rod, what is the resulting current, in millivolts, through the rod? I = || mA

A rod of pure silicon has a diameter of 2.44 cm and a length of 23.7 cm. The data provided in the table may be useful. Conductivity (σ), resistivity (p), and temperature coefficient of resistivity (a) at 20°C for select materials. material σ (1/(Q2. m)) p (.m) a ('C-¹) conductors silver 6.29 × 107 ☑ 1.59 × 10-8 3.8 × 10-3 copper 5.95 × 107 1.68 × 10-8 3.9 × 10-3 gold 4.10 × 107 2.44 × 10-8 aluminum 3.4 × 10-3 3.77 × 107 2.65 × 10-8 3.9 × 10-3 tungsten 1.79 × 107 ☑ 5.60 × 10-8 4.5 × 10-3 iron 1.03 × 107 9.71 × 10-8 6.5 × 10-3 lead 0.45 × 107 22.0 × 10-8 constantan 0.20 × 107 49.0 × 10-8 0.03 × 10-3 mercury 0.10 × 107 98.0 × 10-8 0.9 × 10-3 nichrome 0.10 × 107 100. × 10-8 0.4 × 10-3 semiconductors carbon (pure) (Values for semiconductors depend strongly on type and amount of impurities.) 2.86 × 10-6 germanium (pure) silicon (pure) 3.50 × 10-5 ☑ 0.60 2300 -0.5 × 10-3 -0.048 -0.075 If a voltage of 1.78 kV is applied across the ends of the rod, what is the resulting current, in millivolts, through the rod? I = || mA

Physics for Scientists and Engineers: Foundations and Connections
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter28: Current And Resistance
Section: Chapter Questions
Problem 69PQ
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A rod of pure silicon has a diameter of 2.44 cm and a length of 23.7 cm. The data provided in the table may be useful. Conductivity (σ), resistivity (p), and temperature coefficient of resistivity (a) at 20°C for select materials. material σ (1/(Q2. m)) p (.m) a ('C-¹) conductors silver 6.29 × 107 ☑ 1.59 × 10-8 3.8 × 10-3 copper 5.95 × 107 1.68 × 10-8 3.9 × 10-3 gold 4.10 × 107 2.44 × 10-8 aluminum 3.4 × 10-3 3.77 × 107 2.65 × 10-8 3.9 × 10-3 tungsten 1.79 × 107 ☑ 5.60 × 10-8 4.5 × 10-3 iron 1.03 × 107 9.71 × 10-8 6.5 × 10-3 lead 0.45 × 107 22.0 × 10-8 constantan 0.20 × 107 49.0 × 10-8 0.03 × 10-3 mercury 0.10 × 107 98.0 × 10-8 0.9 × 10-3 nichrome 0.10 × 107 100. × 10-8 0.4 × 10-3 semiconductors carbon (pure) (Values for semiconductors depend strongly on type and amount of impurities.) 2.86 × 10-6 germanium (pure) silicon (pure) 3.50 × 10-5 ☑ 0.60 2300 -0.5 × 10-3 -0.048 -0.075 If a voltage of 1.78 kV is applied across the ends of the rod, what is the resulting current, in millivolts, through the rod? I = || mA
Transcribed Image Text:A rod of pure silicon has a diameter of 2.44 cm and a length of 23.7 cm. The data provided in the table may be useful. Conductivity (σ), resistivity (p), and temperature coefficient of resistivity (a) at 20°C for select materials. material σ (1/(Q2. m)) p (.m) a ('C-¹) conductors silver 6.29 × 107 ☑ 1.59 × 10-8 3.8 × 10-3 copper 5.95 × 107 1.68 × 10-8 3.9 × 10-3 gold 4.10 × 107 2.44 × 10-8 aluminum 3.4 × 10-3 3.77 × 107 2.65 × 10-8 3.9 × 10-3 tungsten 1.79 × 107 ☑ 5.60 × 10-8 4.5 × 10-3 iron 1.03 × 107 9.71 × 10-8 6.5 × 10-3 lead 0.45 × 107 22.0 × 10-8 constantan 0.20 × 107 49.0 × 10-8 0.03 × 10-3 mercury 0.10 × 107 98.0 × 10-8 0.9 × 10-3 nichrome 0.10 × 107 100. × 10-8 0.4 × 10-3 semiconductors carbon (pure) (Values for semiconductors depend strongly on type and amount of impurities.) 2.86 × 10-6 germanium (pure) silicon (pure) 3.50 × 10-5 ☑ 0.60 2300 -0.5 × 10-3 -0.048 -0.075 If a voltage of 1.78 kV is applied across the ends of the rod, what is the resulting current, in millivolts, through the rod? I = || mA
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