Poynting vector

短语

[化] 坡印亭矢量

词形变化

Poynting vectors 复数 Poynting vectors

释义与例句

n.
  1. 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.

    工程 物理

词源

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

来源：wiktionary