A cylindrical wire of radius R carries a uniform current through its circular cross-section. Inside the wire at a distance of r from the central line the magnetic field is measured as B. What is the current density (J) in the wire? B O a. J= 2µor O b 2Br J = 2B J= JHor 2B O d. J= HoR O e. J= 210 Br R 240B O f. J= BR O8 J= Hor? B J = poR Oh.

A cylindrical wire of radius R carries a uniform current through its circular cross-section. Inside the wire at a distance of r from the central line the magnetic field is measured as B. What is the current density (J) in the wire? B O a. J= 2µor O b 2Br J = 2B J= JHor 2B O d. J= HoR O e. J= 210 Br R 240B O f. J= BR O8 J= Hor? B J = poR Oh.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 45P: A long, straight wire of radius R caries a current I that is distributed uniformly over the...

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