Calculate the resistance of a wire which has a uniform diameter of 1.72mm and a length of 312.5cm if the resistivity is known to be 0.000000060hm.m. Give your answer in units of Ohms up to 3 decimals.

Calculate the resistance of a wire which has a uniform diameter of 1.72mm and a length of 312.5cm if the resistivity is known to be 0.000000060hm.m. Give your answer in units of Ohms up to 3 decimals.

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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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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Calculate the resistance of a wire which has a uniform diameter of 1.72mm and a length of 312.5cm if the resistivity is known to be 0.000000060hm.m. Give your answer in units of Ohms up to 3
decimals.

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