Difference between revisions of "Electromagnetic wave"
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A transverse wave composed of an oscillating electrical field and a magnetic field that oscillate perpendicular to the electric field.<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref> | A transverse wave composed of an oscillating electrical field and a magnetic field that oscillate perpendicular to the electric field.<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref> | ||
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| + | The spectrum of electromagnetic waves has an extremely wide range from radio waves, micro waves, TeraHertz radiation, infrared (IR) radiation, visible light, ultraviolett (UV) light, far UV radiation, soft X-rays, hard X-rays and <math>\gamma</math>-radiation. | ||
Electromagnetic waves are well described by the classical laws of electricity and magnetism, known as Maxwell's equations: | Electromagnetic waves are well described by the classical laws of electricity and magnetism, known as Maxwell's equations: | ||
Revision as of 18:24, May 23, 2007
A transverse wave composed of an oscillating electrical field and a magnetic field that oscillate perpendicular to the electric field.[1]
The spectrum of electromagnetic waves has an extremely wide range from radio waves, micro waves, TeraHertz radiation, infrared (IR) radiation, visible light, ultraviolett (UV) light, far UV radiation, soft X-rays, hard X-rays and 
-radiation.
Electromagnetic waves are well described by the classical laws of electricity and magnetism, known as Maxwell's equations:
| Name | Partial Differential Equations | Integral Equations |
|---|---|---|
| Gauss's Law of Conservation: | 
|
|
| Gauss' Law Of Magnetism: | 
|
|
| Faraday's Law of Induction: | 
|
|
| Ampère's Law of Circulation |
|
|
where B denotes the magnetic field, E denotes the electric field, H denotes the auxiliary magnetic field, J denotes the free current density, and 
denotes the free electric charge density.
In the language of Exterior Calculus, Maxwell's equations can be rewritten much more compactly as:
where d is exterior derivative operator, * is the Hodge star operator, and F is the force exerted upon a charged particle by the electric field and magnetic field.
References
- ↑ Wile, Dr. Jay L. Exploring Creation With Physical Science. Apologia Educational Ministries, Inc. 1999, 2000
