Consider two cylindrical conductors madeof the same ohmic material.E2 I2V2-V1Jk l1→l2r2If p2 = P1, r2 = 2 r1, l2 = 3l1, and V2V1 , find the ratioR2of the resistances.R1

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Answered: Consider two cylindrical conductors…

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Consider two cylindrical conductors made of the same ohmic material.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 9CQ

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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.

Question

Consider two cylindrical conductors made
of the same ohmic material.
E2 I2
V2
-V1
Jk l1→
l2
r2
If p2 = P1, r2 = 2 r1, l2 = 3l1, and V2
V1 , find the ratio
R2
of the resistances.
R1

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