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Poynting vector

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Summary

The vector field S=EΓ—H\mathbf S=\mathbf E\times\mathbf H in macroscopic SI notation, representing electromagnetic energy flux with its exact local interpretation dependent on the chosen field-matter energy split.

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Electromagnetic fieldPoynting vector

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This is an authored directed relation from the source endpoint to the target endpoint.

Authored explanation

Electric and magnetic fields jointly determine the Poynting vector; its surface integral contributes to electromagnetic energy transfer across a boundary under the chosen material description.

How to interpret this relation type

The target represents a state, property, observable, or state-dependent description associated with the source system or theory.

Relation sources

Maxwell equationsPoynting vector

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This is an authored directed relation from the source endpoint to the target endpoint.

Authored explanation

Maxwell's equations lead to Poynting's theorem, relating the divergence of energy flux to the time change of field energy and work done on matter under the stated constitutive assumptions.

How to interpret this relation type

A theory, law, or interaction describes the behavior of the target within a stated regime. The edge detail must state important limits or qualifications.

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No direct relations are authored in this direction.