A long conducting rod has length L = 2.60 m and a square cross section with side d = 3.70E-3 m, as shown in the figure. The electric resistance between the two ends A and B of the rod is measured to be 0.636 2. What is the resistivity of material that makes the rod (in Ohm meters)? d B L

A long conducting rod has length L = 2.60 m and a square cross section with side d = 3.70E-3 m, as shown in the figure. The electric resistance between the two ends A and B of the rod is measured to be 0.636 2. What is the resistivity of material that makes the rod (in Ohm meters)? d B L

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 57PQ

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Concept explainers

Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.

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A long conducting rod has length L = 2.60 m and a square cross section with side d = 3.70E-3 m, as shown in the figure.
The electric resistance between the two ends A and B of the rod is measured to be 0.636 2. What is the resistivity of
material that makes the rod (in Ohm meters)?
d
B
L

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