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...

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

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

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

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

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...

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...

{\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...

physicist and mathematician known for discovering the concept of Umov-Poynting vector and Umov effect. Umov was born in 1846 in Simbirsk (present-day Ulyanovsk)...

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...

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...

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

{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 )...

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...

a unit area of a chosen cross section. The current density vector is defined as a vector whose magnitude is the electric current per cross-sectional...

\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...

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

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...

^{2}\right)+{\frac {1}{c}}\mathbf {S} ,} where S is the Poynting vector. The Riemann–Silberstein vector is used for an exact matrix representations of Maxwell's...

the magnetic field. The above rules can be generalized to give the modern vector form of Ørsted's law The line integral of the magnetic field B ( x ) {\displaystyle...

{\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...

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

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...

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...

Fleming's left-hand rule for motors Improper rotation ISO 2 Oersted's law Poynting vector Pseudovector Reflection (mathematics) Hamilton, William Rowan (1853)...

{\displaystyle {\boldsymbol {\sigma }}} , in turn this can be combined with the Poynting vector S {\displaystyle \mathbf {S} } to obtain the electromagnetic stress–energy...

density, with units of charge per unit time per unit area. Also known as vector current, it is used in the geometric context of four-dimensional spacetime...