A copper wire of radius a=0.306 mm has an aluminum jacket of outer radius b-0.402 mm. There is a current i = 2.97 A in the composite wire, Take the resistivity for copper and aluminum to be 1.69x 100-m and 2.75 10 Q-m. Calculate the current in (a) the copper and (b) the aluminum. (c) If a potential difference V-17.3 V between the ends maintains the current, what is the length in meters of the composite wire? (a) Number (b) Number (c) Number Units Units Units

College Physics
11th Edition
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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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A copper wire of radius a=0.306 mm has an aluminum jacket of outer radius b-0.402 mm. There is a current i = 2.97 A in the
composite wire, Take the resistivity for copper and aluminum to be 1.69x 100-m and 2.75 10 Q-m. Calculate the current in (a) the
copper and (b) the aluminum. (c) If a potential difference V-17.3 V between the ends maintains the current, what is the length in
meters of the composite wire?
(a) Number
(b) Number
(c) Number
Units
Units
Units
Transcribed Image Text:A copper wire of radius a=0.306 mm has an aluminum jacket of outer radius b-0.402 mm. There is a current i = 2.97 A in the composite wire, Take the resistivity for copper and aluminum to be 1.69x 100-m and 2.75 10 Q-m. Calculate the current in (a) the copper and (b) the aluminum. (c) If a potential difference V-17.3 V between the ends maintains the current, what is the length in meters of the composite wire? (a) Number (b) Number (c) Number Units Units Units
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