English Explanatory Dictionary

Poynting vector

English dictionary entry

Meanings

noun
  1. The vector obtained in the direction of a right-hand screw from the cross product (vector product) of the electric field vector rotated into the magnetic field vector of an electromagnetic wave. Note: The Poynting vector, with transmission media parameters and constants, gives the irradiance and direction of propagation of the electromagnetic wave. Mathematically: ⃑P=⃑E×⃑H.

Word forms

Poynting vector Poynting vectors

Etymology

After English physicist John Henry Poynting (1852–1914).

Related words

Poynting theorem
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