Datrys F=Kfrac{Q_{1}Q_{2}}{r_{2}}

$$F = K \frac { Q _ { 1 } Q _ { 2 } } { r _ { 2 } }$$

Datrys ar gyfer K

$$\left\{\begin{matrix}K=\frac{Fr_{2}}{Q_{1}Q_{2}}\text{, }&Q_{2}\neq 0\text{ and }Q_{1}\neq 0\text{ and }r_{2}\neq 0\\K\in \mathrm{R}\text{, }&\left(Q_{2}=0\text{ or }Q_{1}=0\right)\text{ and }F=0\text{ and }r_{2}\neq 0\end{matrix}\right.$$

Camau ar gyfer Datrys Hafaliad Llinol

Lluoswch ddwy ochr yr hafaliad â r_{2}.

$$Fr_{2}=KQ_{1}Q_{2}$$

Cyfnewidiwch yr ochrau fel bod yr holl dermau newidiol ar yr ochr chwith.

$$KQ_{1}Q_{2}=Fr_{2}$$

Mae'r hafaliad yn y ffurf safonol.

$$Q_{1}Q_{2}K=Fr_{2}$$

Rhannu’r ddwy ochr â Q_{1}Q_{2}.

$$\frac{Q_{1}Q_{2}K}{Q_{1}Q_{2}}=\frac{Fr_{2}}{Q_{1}Q_{2}}$$

Mae rhannu â Q_{1}Q_{2} yn dad-wneud lluosi â Q_{1}Q_{2}.

$$K=\frac{Fr_{2}}{Q_{1}Q_{2}}$$

Datrys ar gyfer F

$$F=\frac{KQ_{1}Q_{2}}{r_{2}}$$

$$r_{2}\neq 0$$