Question1 1.1 A copper conductor has a resistance of 15 2 at 20°C. Determine the resistance at 80°C if the temperature coefficient of copper at 20°C is 0.0038/K 1.2 A current of 40 A is conducted through a copper conductor 500m long. If the voltage drop over that length is 4 V, determine the minimum diameter of the conductor. Assume the relative to be 0.0172 µ

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Question1
1.1 A copper conductor has a resistance of 15 Q at 20°C. Determine the resistance
at 80°C if the temperature coefficient of copper at 20°C is 0.0038/K
1.2 A current of 40 A is conducted through a copper conductor 500m long. If the
voltage drop over that length is 4 V, determine the minimum diameter of the
conductor. Assume the relative to be 0.0172 μ
Question 2
Redraw the circuit below in the standard format and determine the current in the 12-
ohm resistor.
U9
F
100 V
Hilelr
9Ω
1092
18Ω
B
15 Ω
E
202
12 Q2
16 Ω
U8
Transcribed Image Text:Question1 1.1 A copper conductor has a resistance of 15 Q at 20°C. Determine the resistance at 80°C if the temperature coefficient of copper at 20°C is 0.0038/K 1.2 A current of 40 A is conducted through a copper conductor 500m long. If the voltage drop over that length is 4 V, determine the minimum diameter of the conductor. Assume the relative to be 0.0172 μ Question 2 Redraw the circuit below in the standard format and determine the current in the 12- ohm resistor. U9 F 100 V Hilelr 9Ω 1092 18Ω B 15 Ω E 202 12 Q2 16 Ω U8
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