Consider a coaxial cable as shown in the figure. The cable consists of a solid inner conductor of radius ri = 0.4 cm that is surrounded by a cylindrical tube of inner radius r2 0.8 cm and outer radius r3 = 1.8 cm. The conductors carry equal and opposite currents I = 1 A but the current density varies linearly with the distance from the center for the inner conductor (j1 = c1r) while it is distributed uniformly for the outer conductor. Determine the magnetic field (in units of uT (microtesla)) at a distance r = 1.3 cm from the axis. (Ho = 4T x 10-´N/A? and T = 3.14) Answer 13

Consider a coaxial cable as shown in the figure. The cable consists of a solid inner conductor of radius ri = 0.4 cm that is surrounded by a cylindrical tube of inner radius r2 0.8 cm and outer radius r3 = 1.8 cm. The conductors carry equal and opposite currents I = 1 A but the current density varies linearly with the distance from the center for the inner conductor (j1 = c1r) while it is distributed uniformly for the outer conductor. Determine the magnetic field (in units of uT (microtesla)) at a distance r = 1.3 cm from the axis. (Ho = 4T x 10-´N/A? and T = 3.14) Answer 13

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 54P: By how much is the approximation B=0nI in error at the center of a solenoid that is 15.0 cm long,...

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