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/ee/ - Electrical Engineering Catalog


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25 Dec 2021Mathchan is launched into public

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R: 3 / I: 0 What happened to the RC circuit captcha?
R: 1 / I: 0 yay I'm studying ee in school top 300 uni
R: 0 / I: 0 Hullo anons,
I am on my way of self studying some topics that is not offered in my University, but am having difficulty finding topics in regards of RF designs and implementations, any pointers to help with that? I am familiar with analog circuits, but not in how things change when they're high frequency
R: 1 / I: 0

Maxwell's equations

Gauss's law

ΩEdS=1ε0ΩρdV\qquad \oiint_{\partial\Omega}\textbf{E}\cdot\textrm{d}\textbf{S} = \frac{1}{\varepsilon_0}\iiint_\Omega\rho\,\mathrm{d}V


Gauss's law for magnetism
ΩBdS=0\qquad \oiint_{\partial\Omega}\textbf{B}\cdot\textrm{d}\textbf{S} = 0


Faraday's law

ΣEd=ddtΣBdS\qquad \oint_{\partial\Sigma}\textbf{E}\cdot\textrm{d}\ell = -\frac{\textrm{d}}{\textrm{d}t}\iint_\Sigma\textbf{B}\cdot\textrm{d}\textbf{S}


Ampere's law

ΣBd=μ0(ΣJdS+ε0ddtΣEdS)\qquad \oint_{\partial\Sigma}\textbf{B}\cdot\textrm{d}\ell = \mu_0\left(\iint_\Sigma\textbf{J}\cdot\textrm{d}\textbf{S} + \varepsilon_0\frac{\textrm{d}}{\textrm{d}t}\iint_\Sigma\textbf{E}\cdot\textrm{d}\textbf{S}\right)
R: 2 / I: 2 (sticky) This board is for the discussion of electrical engineering relating to topics such as electronic circuits, control systems, telecommunication, power distribution and more.