
%0 Journal Article
%A Smith, WE 
%T An Electromagnetic Force Theorem for Quasi-stationary Currents
%J Australian Journal of Physics
%D 1965/06/01
%V 18
%N 3
%P 195-204
%K 
%R https://doi.org/10.1071/PH650195
%U https://www.publish.csiro.au/paper/PH650195 
%X It is shown that the time-averaged magnetic forces produced in a system excited by quasi-stationary currents may be expressed in terms of derivatives of effective inductance parameters in a manner similar to that of magnetostatics. Practical applications of the theorem include electromagnetic levitation, the absolute calibration of electrical measuring instruments, and the assessment of mechanical stresses in magnet assemblies. 
