Directions: Solve for the given problems. Show your complete solutions. Express your final answers into 3 significant figures. The terminal voltage of the battery in figure 4 is 16.6 V. What is the resistance R of the external resistor? What is the internal resistance r of the 18.0-V battery? What should be the diameter of an aluminum wire for its resistance to be equal to that of a copper wire which diameter is 2.17 mm? The two wires are of the same length.ρ (Copper) = 1.68 x 10-8 Ωmρ (Aluminum) = 2.65 x 10-8 Ωm CHECKING YOUR UNDERSTANDINGDirections: Solve for the given problems. Show your complete solutions. Express yourfinal answers into 3 significant figures.1. The terminal voltage of the battery in figure 4 is 16.6 V. What is the resistance R ofthe external resistor? What is the internal resistance r of the 18.0-V battery?2. What should be the diameter of an aluminum wire forits resistance to be equal tothat of a copper wire which diameter is 2.17 mm? The two wires are of the samelength.P (Copper) = 1.68 x 10-$ QmP (Aluminum) = 2.65 x 10-8 Qm18.0 V3.00 A3.00 ARFigure 4. Circuit for Problem 1

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Answered: CHECKING YOUR UNDERSTANDING Directions:…

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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Directions: Solve for the given problems. Show your complete solutions. Express your final answers into 3 significant figures.

The terminal voltage of the battery in figure 4 is 16.6 V. What is the resistance R of the external resistor? What is the internal resistance r of the 18.0-V battery?

What should be the diameter of an aluminum wire for its resistance to be equal to that of a copper wire which diameter is 2.17 mm? The two wires are of the same length.

ρ (Copper) = 1.68 x 10^-8Ωm

ρ (Aluminum) = 2.65 x 10^-8Ωm

CHECKING YOUR UNDERSTANDING
Directions: Solve for the given problems. Show your complete solutions. Express your
final answers into 3 significant figures.
1. The terminal voltage of the battery in figure 4 is 16.6 V. What is the resistance R of
the external resistor? What is the internal resistance r of the 18.0-V battery?
2. What should be the diameter of an aluminum wire forits resistance to be equal to
that of a copper wire which diameter is 2.17 mm? The two wires are of the same
length.
P (Copper) = 1.68 x 10-$ Qm
P (Aluminum) = 2.65 x 10-8 Qm
18.0 V
3.00 A
3.00 A
R
Figure 4. Circuit for Problem 1

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