Fundamental Physics/Electricity/Electromagnetism/Electromagnetic oscillation wave

A coil of N circular loops
Electromagnetic oscillation vector equations	$\nabla \cdot E=0$ $\nabla \times E={\frac {1}{T}}E$ $\nabla \cdot B=0$ $\nabla \times B={\frac {1}{T}}E$
Electromagnetic wave's equations	$\nabla ^{2}E=-\omega E$ $\nabla ^{2}B=-\omega B$
Electromagnetic wave's function	$E=ASin\omega t$ $B=ASin\omega t$ $\omega ={\sqrt {\frac {1}{T}}}=C={\sqrt {\frac {1}{\mu \epsilon }}}=\lambda f$ $T=\mu \epsilon$

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