带子
发表于 2025-3-30 09:41:45
,Coulomb’s Law and the Electric Field,y because there is no evidence to the contrary. This aspect of the laws of electromagnetics should not bother us too much. Although we cannot claim absolute proof to correctness of the laws, experimentation has shown that they are correct and we will view them as such. In the learning process, we wi
dragon
发表于 2025-3-30 12:45:16
http://reply.papertrans.cn/32/3108/310786/310786_52.png
毗邻
发表于 2025-3-30 17:04:07
Boundary Value Problems: Numerical (Approximate) Methods,r the simple planar geometries discussed in Chapter ., the solution required considerable skill. Furthermore, precious little was said about solution of Poisson’s equation. For another example of the difficulty in analytic solutions, consider Fig. 6.1, which shows a simple parallel plate capacitor.
柔美流畅
发表于 2025-3-30 23:46:38
Magnetic Materials and Properties,netic field variations. Solid nickel contracts when placed in a magnetic field, while strong magnetic fields cause atoms to tilt about their spin axes, a phenomenon that leads directly to magnetic resonance imaging (MRI). Naturally occurring materials, such as magnetite (Fe.O.), are found in bacteri
Orgasm
发表于 2025-3-31 03:28:21
The Smith Chart, Impedance Matching, and Transmission Line Circuits,nces in some general fashion and you have a simple method of designing transmission line circuits without the need to perform rather tedious calculations. This has been accomplished in a rather general tool called the Smith chart. The Smith chart is a chart of normalized impedances (or admittances)
分开
发表于 2025-3-31 09:05:07
http://reply.papertrans.cn/32/3108/310786/310786_56.png