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31.The potential difference between two points on a wire that are 8 m apart is 7.2mV when the current density is 45 x 10³ A/m². The resistivity (N * m) of the material of the wire is most nearly: A. 20 x 10-⁹ B. 160 x 10-⁹ C. 1.28 x 10-6 D. 50 x 106

31.The potential difference between two points on a wire that are 8 m apart is 7.2mV when the current density is 45 x 10³ A/m². The resistivity (N * m) of the material of the wire is most nearly: A. 20 x 10-⁹ B. 160 x 10-⁹ C. 1.28 x 10-6 D. 50 x 106

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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31. The potential difference between two points on a wire that are 8 m apart is 7.2mV when the current density is 45 x 10³ A/m². The resistivity (N * m) of the material of the wire is most nearly: A. 20 x 10-⁹ B. 160 x 10-⁹ C. 1.28 x 10-6 D. 50 x 106
Transcribed Image Text:31. The potential difference between two points on a wire that are 8 m apart is 7.2mV when the current density is 45 x 10³ A/m². The resistivity (N * m) of the material of the wire is most nearly: A. 20 x 10-⁹ B. 160 x 10-⁹ C. 1.28 x 10-6 D. 50 x 106
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