Statements (21)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
physical phenomenon
|
| gptkbp:appliesTo |
gptkb:Maxwell's_equations
|
| gptkbp:describes |
conservation of energy in electromagnetic fields
|
| gptkbp:E |
electric field
|
| gptkbp:expressedIn |
divergence of Poynting vector equals negative rate of change of energy density minus work done per unit volume
|
| gptkbp:field |
electromagnetism
|
| gptkbp:form |
∇·S + ∂u/∂t + J·E = 0
|
| https://www.w3.org/2000/01/rdf-schema#label |
Poynting's theorem
|
| gptkbp:J |
current density
|
| gptkbp:namedAfter |
gptkb:John_Henry_Poynting
|
| gptkbp:publishedIn |
1884
|
| gptkbp:relatedTo |
gptkb:Poynting_vector
rate of energy transfer electromagnetic energy density work done on charges |
| gptkbp:S |
gptkb:Poynting_vector
|
| gptkbp:uniform |
electromagnetic energy density
|
| gptkbp:usedIn |
electrical engineering
physics |
| gptkbp:bfsParent |
gptkb:John_Henry_Poynting
|
| gptkbp:bfsLayer |
6
|