In physics, the Poynting vector (or Umov–Poynting vector) represents the directional energy flux (the energy transfer per unit area, per unit time) or...

the University of Birmingham until his death. Poynting was the youngest son of Thomas Elford Poynting, a Unitarian minister. He was born at the parsonage...

Poynting's theorem is a statement of conservation of energy for electromagnetic fields that was developed by British physicist John Henry Poynting. It...

Poynting may refer to: John Henry Poynting (1852–1914), a British physicist, after whom are named: Poynting vector, a representation of the energy flux...

electric charge of the test particle. The GEM Poynting vector compared to the electromagnetic Poynting vector is given by: The literature does not adopt...

currents) and the B field (sourced from the secondary currents) forms the Poynting vector, which points from the primary toward the secondary. "What Separates...

Luminous flux Magnetic flux Magnetic flux quantum Neutron flux Poynting flux Poynting theorem Radiant flux Rapid single flux quantum Sound energy flux...

flux of electromagnetic radiation is equal to the time average of the Poynting vector over the wave's period. For radiation propagating through a typical...

of electromagnetic energy is given by the average Poynting vector, this means that the Poynting vector in these regions, as averaged over a complete oscillation...

per unit area) at any point as the magnitude of the real part of the Poynting vector, S, which is given by     1   2 E × H ∗   . {\textstyle \ {\tfrac {\...

{e^{i\omega (r/c-t)}}{r}}{\hat {\theta }}.\end{aligned}}} The time-averaged Poynting vector ⟨ S ⟩ = ( μ 0 p 0 2 ω 4 32 π 2 c ) sin 2 ⁡ ( θ ) r 2 r ^ {\displaystyle...

{\displaystyle E_{0}=c_{0}B_{0}} , which can be seen immediately from the Poynting vector. The electric field, magnetic field, and direction of wave propagation...

.} The result is a scalar since it is the surface integral of the Poynting vector. 2024 world electricity generation by source in terawatt-hours (TWh)...

Poynting vector) multiplied by cos θ for a wave at an angle θ to the normal direction (or equivalently, taking the dot product of the Poynting vector...

the phase velocity could be made anti-parallel to the direction of Poynting vector. This is contrary to wave propagation in naturally occurring materials...

canonical commutation relations. In classical Maxwell electrodynamics the Poynting vector is a linear momentum density of electromagnetic field. S ( r , t )...

\alpha ,} where ⟨ • ⟩ is the time-average; S is the Poynting vector; α is the angle between a unit vector normal to the surface and S. For a propagating sinusoidal...

{S} ={\frac {1}{\mu _{0}}}\mathbf {E} \times \mathbf {B} } is the Poynting vector, σ i j = ϵ 0 E i E j + 1 μ 0 B i B j − 1 2 ( ϵ 0 E 2 + 1 μ 0 B 2 )...

rewritten to something that can be interpreted physically, namely the Poynting vector. Using the product rule and Faraday's law of induction gives ∂ ∂ t...

relativistic vector function from which the electromagnetic field can be derived. It combines both an electric scalar potential and a magnetic vector potential...

c} is the speed of light, and S {\displaystyle \mathbf {S} } is the Poynting vector. This form of the force law relates the energy flux in the fields to...

{\mathbf {r-r_{i}} }{|\mathbf {r-r_{i}} |}}} is the unit vector of the displacement vector that indicates the direction of the field due to the source...

permittivity of vacuum, μ0 is the magnetic permeability of vacuum, the Poynting vector is S = 1 μ 0 E × B {\displaystyle \mathbf {S} ={\frac {1}{\mu _{0}}}\mathbf...

series with the cable. Heaviside also independently discovered the Poynting vector.: 116–118  Heaviside advanced the idea that the Earth's uppermost atmosphere...

magnetic interaction is described in terms of a vector field, where each point in space is associated with a vector that determines what force a moving charge...

direction of the Poynting vector. On the other hand, the wave vector points in the direction of phase velocity. In other words, the wave vector points in the...

The Poynting–Robertson effect, also known as Poynting–Robertson drag, named after John Henry Poynting and Howard P. Robertson, is a process by which solar...

stress-energy tensor, a covariant rank-2 tensor which includes the Poynting vector, Maxwell stress tensor, and electromagnetic energy density. The EM...

of the generalized angular momentum is conserved. By looking at the Poynting vector of the configuration, one can deduce that the fields have nonzero total...

Energy current is a flow of energy defined by the Poynting vector (E × H), as opposed to normal current (flow of charge). It was originally postulated...