Inverse Problem for Static Electromagnetic Field in a Dipole Approximation
arXiv:physics/0404081
Abstract
The following inverse problem is discussed. A static electromagnetic field generated by a limited system of charges and currents is supposed to be known with its first derivatives at a point somewhere far from the system. This allows to reconstruct the position of the system, its net charge, and the electric and magnetic moments of the system.
arXiv comment5 pages