industrious
发表于 2025-3-21 16:22:10
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Atheroma
发表于 2025-3-21 22:31:43
Quasi-static Electromagnetic Field,nt external magnetic field. The field and current variations are assumed to be sufficiently slow such that the field distribution at any moment of time can be described as static and created by the currents existing at this moment.
防水
发表于 2025-3-22 00:26:58
Electromagnetic Waves,equencies small compared to the eigenfrequencies of the molecular and electronic oscillations. Then the material equations, i.e. the relations between the vectors . and ., and . and . remain the same as in the case of the constant fields.
种类
发表于 2025-3-22 07:24:00
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Favorable
发表于 2025-3-22 11:05:30
Waves in Plasma,ion and expressions for the current density for each type of charged particles. The longitudinal quasi-static electric field caused by charge carriers oscillations has been determined by the Poisson equation. However, this approach is inadequate for the study of electromagnetic wave propagation in p
步兵
发表于 2025-3-22 16:44:39
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步兵
发表于 2025-3-22 18:17:49
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DEI
发表于 2025-3-23 01:15:25
Book 2004ic field as possible. The choice of material was determined by both the ab sence of such a book and the scientific interests of the authors. From the very beginning, however, we felt it necessary to include the fundamentals of electrodynamics that are required for the thorough analysis of particula
津贴
发表于 2025-3-23 04:24:08
Current Instabilities,ed as stable, if these deviations do not increase with time, and in such a case the system cannot function as an oscillator or amplifier. In the opposite case, when the small deviations increase with time, the system is unstable, and it can be used as an oscillator or amplifier. In the further analysis we mainly follow .
Affirm
发表于 2025-3-23 09:02:53
Ingrid Gogolin,Antje Hansen,Dominique Rauchcan be either positive, or negative. It can be measured and has its own dimension. In the MKS system of units which is used in this book the unit of an electric charge is .. The charge of an electron is, as it is well known, negative, and its absolute value e is 1.60 × 10. coulomb.