An aluminum wire with a diameter of 0.085 mm has a uniform electric field of 0.285 V/m imposed along its entire length. The temperature of the wire is 55.0 degrees Celsius. Assume one free electron per atom. (a) Use the information in Table 26.2 to determine the resistivity of aluminum at this temperature. (b) What is the current density in the wire? (c) What is the total current in the wire? (d) What is the drift speed of the conduction electrons? (e) What potential difference must exist between the ends of a 1.70 m length of the wire to produce the states electric field?

An aluminum wire with a diameter of 0.085 mm has a uniform electric field of 0.285 V/m imposed along its entire length. The temperature of the wire is 55.0 degrees Celsius. Assume one free electron per atom. (a) Use the information in Table 26.2 to determine the resistivity of aluminum at this temperature. (b) What is the current density in the wire? (c) What is the total current in the wire? (d) What is the drift speed of the conduction electrons? (e) What potential difference must exist between the ends of a 1.70 m length of the wire to produce the states electric field?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 28P: An aluminum wire 1.628 mm in diameter (14-gauge) carries a current of 3.00 amps, (a) What is the...

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