An infinitely long conductive wire of radius a is inside an infinitely long and very thin sheath of radius b. Constant I current goes from the conductor wire and returns from the cylindrical sheath. The current density is assumed to be uniform at the wire and sheath. Write the expressions of the magnetic field that are valid inside the wire, between the wire and the sheath and outside the sheath.

An infinitely long conductive wire of radius a is inside an infinitely long and very thin sheath of radius b. Constant I current goes from the conductor wire and returns from the cylindrical sheath. The current density is assumed to be uniform at the wire and sheath. Write the expressions of the magnetic field that are valid inside the wire, between the wire and the sheath and outside the sheath.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 80AP: The current density in the long, cylindrical wire shown in the accompanying figure varies with...

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