An electrical conductor designed to carry large currents has a circular cross section with 2.8 mm in diameter and is 19 m long. The resistance between its ends is 0.8 2. (a) What is the resistivity (in nom or 10-9m) of the material? (b) If the electric field magnitude E in the conductor is 2.76 V/m, what is the total current (in Amps)? (c) If the material has 8.5x1028 free electrons per cubic meter, find the average drift speed (in m/s) under the conditions of part (b).

An electrical conductor designed to carry large currents has a circular cross section with 2.8 mm in diameter and is 19 m long. The resistance between its ends is 0.8 2. (a) What is the resistivity (in nom or 10-9m) of the material? (b) If the electric field magnitude E in the conductor is 2.76 V/m, what is the total current (in Amps)? (c) If the material has 8.5x1028 free electrons per cubic meter, find the average drift speed (in m/s) under the conditions of part (b).

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 15P: If the current carried by a conductor is doubled, what happens to (a) the charge carrier density,...

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