Find the resistance of 1000 metres of a copper wire 25 sq. mm in cross - selection.The resistance of copper is 1/58 ohm per metre length and 1 sq - mm cross - section.What will be the resistance of another wire of the same material, three times as longand one - half the cross - sectional area ?

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Answered: Find the resistance of 1000 metres of a…

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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Find the resistance of 1000 metres of a copper wire 25 sq. mm in cross - selection. The resistance of copper is 1/58 ohm per metre length and 1 sq - mm cross - section. What will be the resistance of another wire of the same material, three times as long and one - half the cross - sectional area ?