Кулон заңы:<img src="http://tex.z-dn.net/?f=F%3Dk%5Cfrac%7Bq_%7B1%7Dq_%7B2%7D%7D%7Br%5E%7B2%7D%7D" id="TexFormula1" title="F=k\frac{q_{1}q_{2}}{r^{2}}" alt="F=k\frac{q_{1}q_{2}}{r^{2}}" align="absmiddle" class="latex-formula">
былай да жазамыз
<img src="http://tex.z-dn.net/?f=F%3Dk%5Cfrac%7Bq%5E%7B2%7D%7D%7Br%5E%7B2%7D%7D" id="TexFormula2" title="F=k\frac{q^{2}}{r^{2}}" alt="F=k\frac{q^{2}}{r^{2}}" align="absmiddle" class="latex-formula">
зарядтың квадратын табамыз
<img src="http://tex.z-dn.net/?f=q%5E%7B2%7D%3D%5Cfrac%7BFr%5E%7B2%7D%7D%7Bk%7D" id="TexFormula3" title="q^{2}=\frac{Fr^{2}}{k}" alt="q^{2}=\frac{Fr^{2}}{k}" align="absmiddle" class="latex-formula">
ссонда заряд мынаға тең
<img src="http://tex.z-dn.net/?f=q%3Dr%5Csqrt%7B%5Cfrac%7BF%7D%7Bk%7D%7D" id="TexFormula4" title="q=r\sqrt{\frac{F}{k}}" alt="q=r\sqrt{\frac{F}{k}}" align="absmiddle" class="latex-formula">
мәнін қояр болсақ
<img src="http://tex.z-dn.net/?f=q%3D0.05%5Csqrt%7B%5Cfrac%7B0.4%2A10%5E%7B-3%7D%7D%7B9%2A10%5E%7B9%7D%7D%7D" id="TexFormula5" title="q=0.05\sqrt{\frac{0.4*10^{-3}}{9*10^{9}}}" alt="q=0.05\sqrt{\frac{0.4*10^{-3}}{9*10^{9}}}" align="absmiddle" class="latex-formula">=0.01*10^(-6)=0.01мкКл
