5.If the resistance of an aluminum wire at room temperature (20°C) is 100 m2 (measured by a milliohmmeter), at what temperature will itsresistance increase to 120 m2?
5.If the resistance of an aluminum wire at room temperature (20°C) is 100 m2 (measured by a milliohmmeter), at what temperature will itsresistance increase to 120 m2?
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Answer The following problem. Base on the given Table. Show complete solutions.
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Transcribed Image Text:American Wire Gauge (AWG) sizes.
Cross-sectional
Ohms/305 m
AWG
Diameter (cm)
Area (cm?)
@20°C
4/0
1.175
1.084
0.049
3/0
1.046
0.859
0.681
0.0618
2/0
0.931
0.078
1/0
0.829
0.5398
0.0983
0.3400
0.2140
0.1346
0.0845
2
0.658
0.1563
0.522
0.414
0.2485
0.3951
4
6
8
0.328
0.6282
10
0.260
0.0531
0.9989
12
0.206
0.0333
1.588
0.0211
0.0132
14
0.164
2.525
0,130
0.103
4.016
6.385
16
18
0.0083
20
0.0816
0.0052
10.15
22
0.0647
0.0033
16.14
24
0.0513
0.0021
25.67
26
0.0407
0.00130
40.81
28
0.0323
0.00082
64.9
30
0.0256
0.00051
103.2
32
0.0203
0.00032
164.1
34
0.0161
0.00020
260,9
36
0.0128
0.00013
414.8
38
0.0101
0.00008
659.6
40
0.00802
0.00005
1049
5.If the resistance of an aluminum wire at room temperature (20°C)
is 100 m2 (measured by a milliohmmeter), at what temperature will
itsresistance increase to 120 m2?
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