Abstract A magnetic field is a fundamental non-material entity arising from moving electric charges and time-varying electric fields. This paper presents a unified and mathematically substantive treatment of magnetic fields spanning classical electromagnetism, special relativity, and quantum field theory. Critically, all four of Maxwell's equations are derived and connected explicitly to the Universal Balance-Feedback Framework (UBFF), a systems-theoretic meta-framework in which the mutual generation of electric and magnetic fields constitutes a self-regulating feedback loop governed by dynamic equilibrium operators. We demonstrate that Faraday induction and the Ampere-Maxwell law form the primary feedback pair of this loop, and that Gauss's laws for electricity and magnetism encode structural conservation constraints on the system. The relativistic unification of E and B fields via the electromagnetic field tensor Fᵘv is analyzed, showing that the perceived partition between electric and magnetic phenomena is frame-dependent—a deeper expression of the UBFF principle that balance is observer-relative. Field topology, energy-momentum structure, and quantum excitations are integrated under this framework. This paper is intended as a contribution to both the physics of electromagnetism and the broader project of establishing the UBFF as a scientifically credible and falsifiable unified systems framework.
Angelito Enriquez Malicse (Thu,) studied this question.