A copper wire of radius a -0.248 mm has an aluminum jacket of outer radius b = 0.304 mm. There is a current i - 2.21 A in the composite wire. Take the resistivity for copper and aluminum to be 1.69 × 10-80-m and 2.75 x 10-80-m. Calculate the current in (a) the copper and (b) the aluminum. (c) If a potential difference V-11.6 V between the ends maintains the current, what is the length in meters of the composite wire? (a) Number i 1.15 Units A (b) Number i 1.06 Units A (c) Number i 116 Units m >

A copper wire of radius a -0.248 mm has an aluminum jacket of outer radius b = 0.304 mm. There is a current i - 2.21 A in the composite wire. Take the resistivity for copper and aluminum to be 1.69 × 10-80-m and 2.75 x 10-80-m. Calculate the current in (a) the copper and (b) the aluminum. (c) If a potential difference V-11.6 V between the ends maintains the current, what is the length in meters of the composite wire? (a) Number i 1.15 Units A (b) Number i 1.06 Units A (c) Number i 116 Units m >

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter12: Electronic Control Devices

Section: Chapter Questions

Problem 14RQ

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