The magnetic induction of the system consisting of a coil and a ferromagnetic spherical body
Abstract
The magnetic induction is calculated for two configurations of a ferromagnetic spherical body surrounded by a currentcarrying conductor. The first case is for an infinitesimally thin current band carrying a stationary current and surrounding a spherical shell. The second case is for a current band of finite width carrying a stationary current and surrounding a solid sphere. The ferromagnetic bodies are assumed to be linear and homogeneous. The reduction of the solution for the dipole term to that of a filamentary circular currentcarrying conductor is shown in the first case when the permeability of the ferromagnetic spherical shell is allowed to approach that of free space.
 Publication:

Unknown
 Pub Date:
 March 1979
 Bibcode:
 1979misc.reptR....B
 Keywords:

 Electromagnetic Fields;
 Ferromagnetic Materials;
 Magnetic Induction;
 Boundary Value Problems;
 Finite Difference Theory;
 Finite Element Method;
 Fourier Series;
 Iteration;
 Legendre Functions;
 Maxwell Equation;
 Poisson Equation;
 Spherical Shells;
 Electronics and Electrical Engineering