鸟笼 发表于 2025-3-25 07:18:50
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Electrostaticsntial simpli-fications. For example, in electrostatics, charges do not move so there are no currents and then the magnetic field is null. In this chapter, we will study this model in terms of the electrostatic potential and introduce the concept of capacitance.gospel 发表于 2025-3-25 12:21:22
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An introduction to nonlinear magnetics. Hysteresisnetic induction is nonlinear. We also consider hysteresis, a behavior appearing in many ferromagnetic materials for which the magnetic induction at each particular point depends not only on its present magnetic intensity but also on the past history of its magnetic state. We introduce a well-known mdebris 发表于 2025-3-26 03:44:10
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http://reply.papertrans.cn/63/6265/626424/626424_27.png内向者 发表于 2025-3-26 10:31:14
Maxwell’s equations in free spacelid we refer to mechanical vibrations and in fluids, besides the important example of the above mentioned acoustic waves, there are also gravity waves or capillary waves, among others. In all cases, an important feature of waves is its finite velocity of propagation.遣返回国 发表于 2025-3-26 13:16:30
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