. A conductor whose diameter is 0.175 inches has a resistance of 0.5 ohms. The wire is drawn through a series of dies until the diameter is reduced to 0.8 inches. Assuming the specific resistance of the material remains constant, what is the resistance of a lengthened conductor?

Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter10: Using Wire Tables And Determining Conductor Sizes
Section: Chapter Questions
Problem 10PP: Determine the ohms-per-mil-foot of an aluminum conductor located in an area with a temperature of...
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1. A conductor whose diameter is 0.175 inches has a resistance of 0.5 ohms. The wire is drawn through a series of dies until the diameter is reduced to 0.8 inches. Assuming the specific resistance of the material remains constant, what is the resistance of a lengthened conductor?
2. The resistance of a wire is 126.48 ohms at 100 degrees Celsius and 100 ohms at 30 degrees Celsius. Determine the temperature coefficient of copper at 0 degrees Celsius?

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