Poynting's theorem

noun
Poyn·​ting's theorem | \ ˈpȯintiŋz- \

Definition of Poynting's theorem

: a statement in electromagnetic theory: the transfer of energy by an electromagnetic wave is at right angles to both electric and magnetic components of the wave vibration and its rate is proportional to the vector product of their amplitudes

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History and Etymology for Poynting's theorem

after John H. Poynting †1914 English physicist, its originator

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Cite this Entry

“Poynting's theorem.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/Poynting%27s%20theorem. Accessed 12 December 2019.

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