Poynting Vector: Difference between revisions
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What are the mathematical equations that allow us to model this topic. For example <math>{\frac{d\vec{p}}{dt}}_{system} = \vec{F}_{net}</math> where '''p''' is the momentum of the system and '''F''' is the net force from the surroundings. | What are the mathematical equations that allow us to model this topic. For example <math>{\frac{d\vec{p}}{dt}}_{system} = \vec{F}_{net}</math> where '''p''' is the momentum of the system and '''F''' is the net force from the surroundings. | ||
The poynting vector can be derived by the equation <math>\vec{S} = {\frac{1\ | The poynting vector can be derived by the equation <math>\vec{S} = {\frac{1}{μ}}\vec{E}\times\vec{B}</math> where '''E''' is the electric field vector, and '''B''' is the magnetic field vector. | ||
[[File:poynting1.gif]] | [[File:poynting1.gif]] | ||
Revision as of 17:04, 2 December 2015
Claimed by Tanner Shaw (tshaw30)
The Poynting vector represents the direction and magnitude of the flux in energy from an electromagnetic field. It was originally discovered by John Henry Poynting in 1884.
The Main Idea
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A Mathematical Model
What are the mathematical equations that allow us to model this topic. For example [math]\displaystyle{ {\frac{d\vec{p}}{dt}}_{system} = \vec{F}_{net} }[/math] where p is the momentum of the system and F is the net force from the surroundings.
The poynting vector can be derived by the equation [math]\displaystyle{ \vec{S} = {\frac{1}{μ}}\vec{E}\times\vec{B} }[/math] where E is the electric field vector, and B is the magnetic field vector.
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