A conducting rod with a circular cross-section (this rod is a cylinder) has a radius of 10 mm and is 2 metres long. The rod is made of aluminum, so its conductivity is 3.6 x 10' S/m. A potential difference (voltage) is applied at both ends of this rod and the current is I= 90 A. That's a lot of current! a. What is the resistance of the rod, when measured from one end to the other? b. Calculate the current density in the rod along its length. c. Determine the electric field amplitude at all locations within the rod. d. What is the electric potential difference between the two ends of the rod.

A conducting rod with a circular cross-section (this rod is a cylinder) has a radius of 10 mm and is 2 metres long. The rod is made of aluminum, so its conductivity is 3.6 x 10' S/m. A potential difference (voltage) is applied at both ends of this rod and the current is I= 90 A. That's a lot of current! a. What is the resistance of the rod, when measured from one end to the other? b. Calculate the current density in the rod along its length. c. Determine the electric field amplitude at all locations within the rod. d. What is the electric potential difference between the two ends of the rod.

College Physics

11th Edition

ISBN:9781305952300

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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