HIKE
发表于 2025-3-28 16:05:49
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松软无力
发表于 2025-3-28 21:10:21
Electromagnetic Waves,magnetic or dielectric material. Most important, however, is that in the first instance there are no boundary conditions to fulfil. Obviously here the conduction current is equal to zero and the solution is the easiest possible with the point form of the equations in use. Maxwell’s equations for cur
paragon
发表于 2025-3-29 02:55:33
,Field Problems—Analytical Solutions,of numerical analysis to field problems and the advent of the digital computer has enabled complex field problems to be solved. However, these rely heavily on computer facilities, programming experience and particularly upon the suitability of the model used. Here one should note that it is not alwa
chiropractor
发表于 2025-3-29 05:10:21
Some Low-frequency Applications,ons of these in situations of direct practical concern. It should now be obvious that the theories of electromagnetism have use throughout the whole field of electrical and electronic engineering. In this chapter we shall consider a few low-frequency applications and the problems we have chosen to d
mastoid-bone
发表于 2025-3-29 11:03:11
High-frequency Effects,e by definition only an approximation, their use enables many electromagnetic wave problems to be simplified particularly in the field of optics and radio waves at large distances from radiating antennae. Here we shall consider the propagation of uniform plane waves across an interface and develop t
哪有黄油
发表于 2025-3-29 12:05:40
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genesis
发表于 2025-3-29 18:47:33
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树胶
发表于 2025-3-29 19:55:33
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存心
发表于 2025-3-30 00:58:53
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蜿蜒而流
发表于 2025-3-30 08:01:20
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