QUESTION 4 a) Remote control is connected to a stereo by 20 m distance by using copper wire. This copper wire has a resistivity of 1.7x10* Qm What should be the diameter at the end of the wire if the resistance of wire must be less than 0.10 2?

QUESTION 4 a) Remote control is connected to a stereo by 20 m distance by using copper wire. This copper wire has a resistivity of 1.7x10* Qm What should be the diameter at the end of the wire if the resistance of wire must be less than 0.10 2?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 69AP: A coaxial cable consists of an inner conductor with radius r1=0.25cm and an outer radius of r0=0.5cm...

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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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