An aluminum wire of unknown cross section has diameter of 0.635 cm and a resistance of 0.28ohm. If the wire is drown through a series of dies until its diameter is reduced to 0.127 cm. What is the resistance of the length conductor 250 ohm 175 ohm 185 ohm 200 ohm

An aluminum wire of unknown cross section has diameter of 0.635 cm and a resistance of 0.28ohm. If the wire is drown through a series of dies until its diameter is reduced to 0.127 cm. What is the resistance of the length conductor 250 ohm 175 ohm 185 ohm 200 ohm

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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250 ohm

175 ohm

185 ohm

200 ohm

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