The graph below represents the relationship between the resistance and the length of a wire of a cross- section area A= 1.22 x 10-7 m2. Depending on the graph, the resistivity (in Q.m) of the wire's material is: R(0) 3 ► L.(m) 2.5 5.0

The graph below represents the relationship between the resistance and the length of a wire of a cross- section area A= 1.22 x 10-7 m2. Depending on the graph, the resistivity (in Q.m) of the wire's material is: R(0) 3 ► L.(m) 2.5 5.0

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter17: Current And Resistance

Section17.6: Electrical Energy And Power

Problem 17.10QQ: The diameter of wire A is greater than the diameter of wire B, but their lengths and resistivities...

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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

The graph below represents
the relationship between
the resistance and the
length of a wire of a cross-
section area A= 1.22 x 10-7
m2. Depending on the
graph, the resistivity (in 0.m)
of the wire's material is:
RA)
2.5
5.0
Select one:
a. 2.22 x 10-7
b. 2.85 x 10-7
c. 2.08 x 10-7
d. 1.95 x 10-7

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