The Figure Shows a Graph of the Resistance of a Wire

question 40

Multiple Choice

The figure shows a graph of the resistance of a wire as a function of its length. What physical quantities does the slope of this graph represent?

• A)the cross-sectional area of the wire
• B)the resistivity of the material of which the wire is made
• C)the product of the resistivity and the cross-sectional area of the wire
• D)the resistivity of the material divided by the cross-sectional area of the wire
• E)the reciprocal of the resistivity of the material

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