5. (a) An electron moves through a uniform magnetic field given by B = Bx i+(3.85 Bx)j. At a particular instant, the electron has velocity V = (2.15 i + 4.25 j) m/s and the magnetic force acting on it is (7.80 × 10-19) K N. Find Bx. %3D (b) The magnitude J of the current density in a certain wire with a circular cross section of radius R = 2.02 mm is given by J = (3.29 x 108)r², with J in amperes per square meter and radial distance r in meters. What is the current through the outer section bounded by r = 0.901R and r = R? %3D

5. (a) An electron moves through a uniform magnetic field given by B = Bx i+(3.85 Bx)j. At a particular instant, the electron has velocity V = (2.15 i + 4.25 j) m/s and the magnetic force acting on it is (7.80 × 10-19) K N. Find Bx. %3D (b) The magnitude J of the current density in a certain wire with a circular cross section of radius R = 2.02 mm is given by J = (3.29 x 108)r², with J in amperes per square meter and radial distance r in meters. What is the current through the outer section bounded by r = 0.901R and r = R? %3D

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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