![]() Morgenthaler, and Jin Au Kong, Electromagnetic Waves (Prentice-Hall, 1994) ISBN 0-13-225871-4. Banesh Hoffmann, Relativity and Its Roots (Freeman, New York, 1983).Melcher, Electromagnetic Fields and Energy (Prentice-Hall, 1989) ISBN 0-13-249020-X. Purcell, Electricity and Magnetism (McGraw-Hill, New York, 1985). Physics for Scientists and Engineers: Electricity, Magnetism, Light, and Elementary Modern Physics (5th ed.). Introduction to Electrodynamics (3rd ed.). (This article accompanied a Decempresentation by Maxwell to the Royal Society.) Maxwell, James Clerk, " A Dynamical Theory of the Electromagnetic Field", Philosophical Transactions of the Royal Society of London 155, 459-512 (1865).45 Archived at the Wayback Machineįurther reading Electromagnetism Journal articles ![]() See NIST Special Publication 330, Appendix 2, p. In the original Recommendation of 1983, the symbol c was used for this purpose. ^ Current practice is to use c 0 to denote the speed of light in vacuum according to ISO 31.In addition, for a valid solution, the wave vector and the angular frequency are not independent they must adhere to the dispersion relation: ![]() As a result, and based on the theory of Fourier decomposition, a real wave must consist of the superposition of an infinite set of sinusoidal frequencies. In practice, g cannot have infinite periodicity because any real electromagnetic wave must always have a finite extent in time and space. ∇ ⋅ E = 0 ∇ ⋅ B = 0 įor virtually any well-behaved function g of dimensionless argument φ, where ω is the angular frequency (in radians per second), and k = ( k x, k y, k z) is the wave vector (in radians per meter).Īlthough the function g can be and often is a monochromatic sine wave, it does not have to be sinusoidal, or even periodic.
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