. The classical electromagnetic deduction of the power in electric circuits resorts to the Poynting’s theorem. However this theorem relies on an assumption regarding the expression of locally stored electromagnetic energy. This assumption allows for alternative expressions of the power required to build up the electromagnetic field, which are proposed and exploited in specific analyses. An alternative formulation is presented here based on the Slepian’s vector, directly derived form the Maxwell’s equations, that fits particularly to circuits, as it provides an easy and straightforward confirmation the power expression through circuit elements.
Electromagnetic deduction of the power in electric circuits
GUARNIERI, MASSIMO
2009
Abstract
. The classical electromagnetic deduction of the power in electric circuits resorts to the Poynting’s theorem. However this theorem relies on an assumption regarding the expression of locally stored electromagnetic energy. This assumption allows for alternative expressions of the power required to build up the electromagnetic field, which are proposed and exploited in specific analyses. An alternative formulation is presented here based on the Slepian’s vector, directly derived form the Maxwell’s equations, that fits particularly to circuits, as it provides an easy and straightforward confirmation the power expression through circuit elements.Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.