| LC control no. | sh2010008391 |
|---|---|
| Topical heading | Poynting theorem |
| Variant(s) | Poynting vector Poyntings theorem Theorem, Poyntings Vector, Poynting |
| See also | Electromagnetism--Mathematics |
| Found in | Work cat.: Barranger, J.P. Hysteresis and eddy-current losses of a transformer lamination viewed as an application of the Poynting theorem, 1965. McGraw-Hill dictionary of scientific and technical terms, 2003: (Poynting theorem -- (electromagnetism) -- a theorem, derived from Maxwells equations, according to which the rate of loss of energy stored in electric and magnetic fields within a region of space is equal to the sum of the rate of dissipation of electrical energy as heat and the rate of flow of electromagnetic energy outward through the surface of the region) Academic Press dictionary of science and technology, 1992: (Poynting theorem -- electromagnetism -- a theorem stating that the rate of electromagnetic energy loss in a specified region of space is equal to the sum of the dissipation rate (heat loss) and the outward rate of electromagnetic energy flowing across the boundary of the region) Chambers dictionary of science and technology, 1999: (Poyntings theorem --[telecommunications] -- that which shows that the rate of flow of energy through a surface is equal to the surface integral of the Poynting vector formed by the components of field lying in the plane of the surface. Used for calculating the power radiated from antennas, or through waveguide systems) ETDE/WIS joint thesaurus online, June 7, 2010 (Poynting Theorem; non-preferred term Poynting Vector) |
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