] Two very long parallel conductors carry equal current along the same direction. Increasing the distance between them by a factor of 3 and decreasing both currents equally by a factor of 1/7 will change the magnitude of the original magnetic force per unit length between the two by a factor that is most nearly (A) 7²/3. (B) 7/3². (C) 1/(7²-3). (D) 1/(7-3). (E) 3/7².

] Two very long parallel conductors carry equal current along the same direction. Increasing the distance between them by a factor of 3 and decreasing both currents equally by a factor of 1/7 will change the magnitude of the original magnetic force per unit length between the two by a factor that is most nearly (A) 7²/3. (B) 7/3². (C) 1/(7²-3). (D) 1/(7-3). (E) 3/7².

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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