bermain fisika bersama febri: gelombang elektromagnetik

$\bg_green \120dpi \inline \\\color{red}Cepat\,\,Rambat\,\,GEM\\\bullet c=\frac{1}{\sqrt{\mu _0\,\epsilon _0}}$
$\bg_green \100dpi \inline \\c=cepat\,\,rambat\,\,GEM(m/s)\\\mu_0=permeabilitas\,\,vakum=4\pi \times 10^{-7}Wb\,A^{-1}m^{-1}\\\epsilon _0=permitivitas\,\,vakum=8,85\times 10^{-12}C^2N^{-1}m^{-2}$
$\bg_green \120dpi \inline \\\color{red}Hubungan\,\,Cepat\,\,Rambat\,\,GEM,\,Kuat\,\,Medan\,\,Listrik\\dan\,\,Kuat\,\,Medan\,\,Magnet\\\bullet \frac{E_m}{B_m}=\frac{E}{B}=c$
$\bg_green \100dpi \inline \\c=cepat\,\,rambat\,\,GEM(m/s)\\E_m=amplitudo\,\,kuat\,\,medan\,\,listrik(N/C)\\B_m=amplitudo\,\,kuat\,\,medan\,\,magnet(T)$
$\bg_green \120dpi \inline \\\color{red}Laju\,\,Energi\,\,Rata-Rata\\\bullet \overline {S}=\frac{B_mE_m}{2\mu _0}\\dengan\\\bullet E_m=cB_m$
$\bg_green \100dpi \inline \\\overline{S}=laju\,\,energi\,\,rata-rata\,\,tiap\,\,m^2\,\,yang\\dipindahkan\,\,GEM(W/m^2)\\E_m=amplitudo\,\,kuat\,\,medan\,\,listrik(N/C)\\B_m=amplitudo\,\,kuat\,\,medan\,\,magnet(T)$
$\bg_green \120dpi \inline \\\color{red}Intensitas\,\,GEM\\\bullet I=\overline{S}\\atau\\\bullet {I}=\frac{\overline{P}}{A}=\frac{\overline{P}}{4\pi r^2}$
$\bg_green \100dpi \inline \\I=intensitas\,\,gelombang(W/m^2)\\\overline{P}=daya\,\,rata-rata(W)\\r=jarak\,\,titik\,\,dari\,\,sumber\,\,gelombang\\\overline{S}=laju\,\,energi\,\,rata-rata(W/m^2)$

bermain fisika bersama febri

Minggu, 23 Januari 2011

gelombang elektromagnetik

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