
TY  - JOUR
A1  - Smith, WE 
T1  - Average Forces in Electromagnetic Systems
JF  - Australian Journal of Physics
JO  - Aust. J.  Phys.
Y1  - 1961
VL  - 14
IS  - 1
SP  - 152
EP  - 159
KW  - 
UR  - https://doi.org/10.1071/PH610152 
N2  - The mechanical forces developed in electromagnetic systems are usually evaluated from surface integrals of the Maxwell stresses. For a large class of systems it is shown that the time average force can be expressed in terms of directly measurable circuittheory parameters. The system must be linear and loss free, but there is no restriction on the frequency of excitation. 
ER  -

