Various formulations of eddy current problems in terms of scalar and vector
potentials are reviewed in the paper. The vector potentials are approximat
ed by edge finite elements and the scalar potentials by nodal ones. The for
mulations are ungauged, leading, in most cases, to singular finite element
equations systems. Special attention is paid to ensuring that the right-han
d sides of the equations systems are consistent. The resulting numerical sc
hemes prove to be as robust as the corresponding Coulomb gauged approaches
realized by nodal elements. (C) 1999 Elsevier Science S.A. All rights reser
ved.