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Long wavelength limit : ウィキペディア英語版 | Long wavelength limit
In electricity and magnetism, the long wavelength limit is the limiting case when the wavelength is much larger than the system size. This corresponds to the quasi-static case, and reduces to electrostatics and magnetostatics. The physical criterion is that , where is the size of the system. The following statements are all equivalent: * * , where is the wave vector * , where is the angular frequency, is the propagation speed of waves.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Long wavelength limit」の詳細全文を読む
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