Poynting vector

English

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

Template:Lb 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: $\vec{P} = \vec{E} \times \vec{H}$ .