Macmillan Learning Two insulated copper wires of similar overall diameter have very different interiors. One wire possesses a solid core of copper, with a circular cross section of radius 3.03 mm. The other wire is composed of 19 strands of thin copper wire bundled together. Each strand has a circular cross section of radius 0.606 mm. The current density J in each wire is the same. J = 1350 A/m² How much current does each wire carry? solid wire current: A solid wire resistance: The resistivity of copper is p = 1.69 × 10-8 22.m. What is the resistance of a 1.75 m length of each wire? stranded wire current: Ω stranded wire resistance: A Ω

Macmillan Learning Two insulated copper wires of similar overall diameter have very different interiors. One wire possesses a solid core of copper, with a circular cross section of radius 3.03 mm. The other wire is composed of 19 strands of thin copper wire bundled together. Each strand has a circular cross section of radius 0.606 mm. The current density J in each wire is the same. J = 1350 A/m² How much current does each wire carry? solid wire current: A solid wire resistance: The resistivity of copper is p = 1.69 × 10-8 22.m. What is the resistance of a 1.75 m length of each wire? stranded wire current: Ω stranded wire resistance: A Ω

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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Subject: physics