Two conductors are made of the same material and have the same length. Conductor A is a solid wire of diameter 1.9 mm. Conductor B is a hollow tube of outside diameter 2.9 mm and inside diameter 1.9 mm. What is the resistance ratio RA/RB, measured between their ends?

Two conductors are made of the same material and have the same length. Conductor A is a solid wire of diameter 1.9 mm. Conductor B is a hollow tube of outside diameter 2.9 mm and inside diameter 1.9 mm. What is the resistance ratio RA/RB, measured between their ends?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter28: Current And Resistance

Section: Chapter Questions

Problem 67PQ

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Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.

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