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Poynting vector

In physics, the Poynting vector (or Umov–Poynting vector) represents the directional energy flux (the energy transfer per unit area, per unit time) or power flow of an electromagnetic field. The SI unit of the Poynting vector is the watt per square metre (W/m2); kg/s3 in SI base units. It is named after its discoverer John Henry Poynting who first…

Measurement, Plane waves & Definition

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Overview

Definition

Other forms

Interpretation

Plane waves

Formulation in terms of microscopic fields

Time-averaged Poynting vector

Resistive dissipation

Radiation pressure

Uniqueness of the Poynting vector

Static fields

Advanced semantic analysis

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Map overview Semantic statistics

Poynting vector

Nodes68
Edges67
Triples67
Avg. degree1.97
Density0.029412
Components1

How this topic connects Entity context

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Poynting vector

Top relations

related to Plane waves · 11
Poynting vector → Epeak, Erms, Finding, However, In, Poynting, RMS, Since, The, This, Without
related to Resistive dissipation · 10
Poynting vector → For, If, Inside, Joule, Once, Poynting, Reitz, Snell's, The, This
related to Static fields · 10
Poynting vector → Although, If, Lorentz, Maxwell, Poynting, That, The, Therefore, To, While
related to Other forms · 8
Poynting vector → Abraham, In, It, Maxwell's, Minkowski, Pfeifer, Poynting, The
related to Uniqueness of the Poynting vector · 7
Poynting vector → However, Poynting, Poynting's, Since, The, The Poynting, This
related to Time-averaged Poynting vector · 6
Poynting vector → Em, More, Poynting, The, These, We
related to Formulation in terms of microscopic fields · 5
Poynting vector → Maxwell's, Only, Poynting, The, When
related to Interpretation · 3
Poynting vector → Jf, Poynting's, The Poynting
related to Radiation pressure · 3
Poynting vector → Poynting, S/c2, The
related to Definition · 2
Poynting vector → In Poynting's, Poynting

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Important terminology

vector poynting field power displaystyle energy electromagnetic flow electric magnetic fields frac conductor poynting's theorem given mathbf definition cable terms

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Poynting vectoris awatt per square metre0.90text
Em is understood to signify a sinusoidally varying field whose instantaneous amplitude Einstance ofA phasor0.80text
Poynting vectorrelated to DefinitionIn Poynting's0.60section
Poynting vectorrelated to DefinitionPoynting0.60section
Poynting vectorrelated to Formulation in terms of microscopic fieldsThe0.60section
Poynting vectorrelated to Formulation in terms of microscopic fieldsMaxwell's0.60section
Poynting vectorrelated to Formulation in terms of microscopic fieldsOnly0.60section
Poynting vectorrelated to Formulation in terms of microscopic fieldsWhen0.60section
Poynting vectorrelated to Formulation in terms of microscopic fieldsPoynting0.60section
Poynting vectorrelated to InterpretationThe Poynting0.60section
Poynting vectorrelated to InterpretationPoynting's0.60section
Poynting vectorrelated to InterpretationJf0.60section

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