A 16.0-m length of wire consists of 7.0 m of copper followed by 9.0 m of aluminum, both of diameter 1.4 mm. A voltage difference of 95 mV is placed across the composite wire. The resistivity of copper is 1.68 x 10-8 N· m and the resistivity of aluminum is 2.65 x 10 8 N. m.
A 16.0-m length of wire consists of 7.0 m of copper followed by 9.0 m of aluminum, both of diameter 1.4 mm. A voltage difference of 95 mV is placed across the composite wire. The resistivity of copper is 1.68 x 10-8 N· m and the resistivity of aluminum is 2.65 x 10 8 N. m.
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter21: Current And Direct Current Circuits
Section: Chapter Questions
Problem 17P
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Transcribed Image Text:A 16.0-m length of wire consists of 7.0 m of copper followed by 9.0
m of aluminum, both of diameter 1.4 mm. A voltage difference of 95
mV is placed across the composite wire. The resistivity of copper is
1.68 x 10-8 N· m and the resistivity of aluminum is
2.65 x 10 8 N. m.
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