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Learning Goal: To learn to apply the concept of current density and Kirchhoff's junction rule. Consider a junction of five wires, as shown in the figure. The arrows indicate the direction of current flow. (Eigure 1) The information about the magnitudes of the current density and the diameters for wires 1, 2, 3, and 4 is given in the table. Some of the values are unknown. Wire Current density (A/mm²) Diameter (mm) Total Current (A) 1 2 3 4 Part A 1.6 ??? 3.0 0.8 Is Find the current Is in wire 5. Express your answer in amperes. Use two significant figures. Assume that the current out of the junction is positive and that the current into the junction is negative. ▸ View Available Hint(s) 195] ΑΣΦΑ → C Submit 2.0 3.0 1.1 ??? ? ??? 2.0 ??? 4.0 A

Learning Goal: To learn to apply the concept of current density and Kirchhoff's junction rule. Consider a junction of five wires, as shown in the figure. The arrows indicate the direction of current flow. (Eigure 1) The information about the magnitudes of the current density and the diameters for wires 1, 2, 3, and 4 is given in the table. Some of the values are unknown. Wire Current density (A/mm²) Diameter (mm) Total Current (A) 1 2 3 4 Part A 1.6 ??? 3.0 0.8 Is Find the current Is in wire 5. Express your answer in amperes. Use two significant figures. Assume that the current out of the junction is positive and that the current into the junction is negative. ▸ View Available Hint(s) 195] ΑΣΦΑ → C Submit 2.0 3.0 1.1 ??? ? ??? 2.0 ??? 4.0 A

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Wire 2 Wire 3 Wire 1 Wire 4 Wire 5
Transcribed Image Text:Wire 2 Wire 3 Wire 1 Wire 4 Wire 5
Learning Goal: To learn to apply the concept of current density and Kirchhoff's junction rule. Consider a junction of five wires, as shown in the figure. The arrows indicate the direction of current flow. (Figure 1) The information about the magnitudes of the current density and the diameters for wires 1, 2, 3, and 4 is given in the table. Some of the values are unknown. Wire Current density (A/mm²) Diameter (mm) Total Current (A) 1 2 3 4 ▼ Part A 1.6 ??? 3.0 0.8 I5 = Find the current I5 in wire 5. Express your answer in amperes. Use two significant figures. Assume that the current out of the junction is positive and that the current into the junction is negative. ► View Available Hint(s) [ΠΙ ΑΣΦ Submit < Return to Assignment Provide Feedback 2.0 3.0 1.1 ??? ? ??? 2.0 ??? 4.0 A
Transcribed Image Text:Learning Goal: To learn to apply the concept of current density and Kirchhoff's junction rule. Consider a junction of five wires, as shown in the figure. The arrows indicate the direction of current flow. (Figure 1) The information about the magnitudes of the current density and the diameters for wires 1, 2, 3, and 4 is given in the table. Some of the values are unknown. Wire Current density (A/mm²) Diameter (mm) Total Current (A) 1 2 3 4 ▼ Part A 1.6 ??? 3.0 0.8 I5 = Find the current I5 in wire 5. Express your answer in amperes. Use two significant figures. Assume that the current out of the junction is positive and that the current into the junction is negative. ► View Available Hint(s) [ΠΙ ΑΣΦ Submit < Return to Assignment Provide Feedback 2.0 3.0 1.1 ??? ? ??? 2.0 ??? 4.0 A
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Hi! For wire #2, J=I/A, why isn't the area formula being used like other wires?

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