Table 17.1 Resistivities and Temperature Coefficients of Resistivity for Various Materials (at 20°C) Temperature Coefficient of Resistivity [('C)-'] Resistivity (N• m) Material Silver 1.59 x 10-8 1.7 x 10-8 3.8 x 10-3 3.9 x 10-3 Copper Gold 2.44 X 10-8 3.4 X 10-3 3.9 x 10-3 4.5 x 10-3 5.0 x 10-3 3.92 x 10 3.9 x 10 Aluminum 2.82 x 10-8 Tungsten 5.6 x 10-8 Iron 10.0 x 10-8 Platinum 11 x 10-8 22 x 10-8 150 x 10-8 3.5 x 10-5 -3 Lead -3 Nichrome" 0.4 x 10-3 -0.5 x 10-3 -48 x 10-3 - 75 x 10-3 Carbon Germanium 0.46 Silicon 640 Glass 1010-1014 Hard rubber =1013 1015 75 x 1016 Sulfur Quartz (fused) *A nickel-chromium alloy commonly used in heating elements.
Table 17.1 Resistivities and Temperature Coefficients of Resistivity for Various Materials (at 20°C) Temperature Coefficient of Resistivity [('C)-'] Resistivity (N• m) Material Silver 1.59 x 10-8 1.7 x 10-8 3.8 x 10-3 3.9 x 10-3 Copper Gold 2.44 X 10-8 3.4 X 10-3 3.9 x 10-3 4.5 x 10-3 5.0 x 10-3 3.92 x 10 3.9 x 10 Aluminum 2.82 x 10-8 Tungsten 5.6 x 10-8 Iron 10.0 x 10-8 Platinum 11 x 10-8 22 x 10-8 150 x 10-8 3.5 x 10-5 -3 Lead -3 Nichrome" 0.4 x 10-3 -0.5 x 10-3 -48 x 10-3 - 75 x 10-3 Carbon Germanium 0.46 Silicon 640 Glass 1010-1014 Hard rubber =1013 1015 75 x 1016 Sulfur Quartz (fused) *A nickel-chromium alloy commonly used in heating elements.
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Question
A wire 50.0 m long and 2.00 mm in diameter is connected
to a source with a potential difference of 9.11 V, and the current
is found to be 36.0 A. Assume a temperature of 20°C and,
using Table 17.1, identify the metal out of which the wire is
made.
![Table 17.1 Resistivities and Temperature Coefficients of Resistivity
for Various Materials (at 20°C)
Temperature Coefficient
of Resistivity
[('C)-']
Resistivity
(N• m)
Material
Silver
1.59 x 10-8
1.7 x 10-8
3.8 x 10-3
3.9 x 10-3
Copper
Gold
2.44 X 10-8
3.4 X 10-3
3.9 x 10-3
4.5 x 10-3
5.0 x 10-3
3.92 x 10
3.9 x 10
Aluminum
2.82 x 10-8
Tungsten
5.6 x 10-8
Iron
10.0 x 10-8
Platinum
11 x 10-8
22 x 10-8
150 x 10-8
3.5 x 10-5
-3
Lead
-3
Nichrome"
0.4 x 10-3
-0.5 x 10-3
-48 x 10-3
- 75 x 10-3
Carbon
Germanium
0.46
Silicon
640
Glass
1010-1014
Hard rubber
=1013
1015
75 x 1016
Sulfur
Quartz (fused)
*A nickel-chromium alloy commonly used in heating elements.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6e2abdeb-ab8f-48a5-8c5c-f8a9dbf7516e%2F003151c9-edf1-451f-a3e3-9bdb63accaea%2F0ajsruj.jpeg&w=3840&q=75)
Transcribed Image Text:Table 17.1 Resistivities and Temperature Coefficients of Resistivity
for Various Materials (at 20°C)
Temperature Coefficient
of Resistivity
[('C)-']
Resistivity
(N• m)
Material
Silver
1.59 x 10-8
1.7 x 10-8
3.8 x 10-3
3.9 x 10-3
Copper
Gold
2.44 X 10-8
3.4 X 10-3
3.9 x 10-3
4.5 x 10-3
5.0 x 10-3
3.92 x 10
3.9 x 10
Aluminum
2.82 x 10-8
Tungsten
5.6 x 10-8
Iron
10.0 x 10-8
Platinum
11 x 10-8
22 x 10-8
150 x 10-8
3.5 x 10-5
-3
Lead
-3
Nichrome"
0.4 x 10-3
-0.5 x 10-3
-48 x 10-3
- 75 x 10-3
Carbon
Germanium
0.46
Silicon
640
Glass
1010-1014
Hard rubber
=1013
1015
75 x 1016
Sulfur
Quartz (fused)
*A nickel-chromium alloy commonly used in heating elements.
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