Answered: Calculate the ratio of the resistance…

Calculate the ratio of the resistance of 12.0 m of aluminum wire 1.6 mm in diameter, to 18.0 m of copper wire 2.2 mm in diameter. PAI = 2.65 × 10-8 Q.m PCu = 1.68 x 10-8 N.m

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 33PE: a) Of what material is a wire made, if it is 25.0 m long with a 0.100 mm diameter and has a...

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Concept explainers

Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.

Question

Calculate the ratio of the resistance of 12.0 m of aluminum wire
1.6 mm in diameter, to 18.0 m of copper wire 2.2 mm in diameter.
PAI = 2.65 × 10-8 Q.m
PCu = 1.68 × 10-8 N.m

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