Make $$ R $$ the subject of the formular $$ \frac{1}{f}=k \frac{Q_{1} Q_{2}}{R^{2}} $$

Question

UpStudy AI · Accepted Answer

We start with the equation

$$
\frac{1}{f} = k \frac{Q_1 Q_2}{R^2}.
$$

**Step 1:** Multiply both sides by $$ R^2 $$ to eliminate the denominator:

$$
\frac{R^2}{f} = k Q_1 Q_2.
$$

**Step 2:** Multiply both sides by $$ f $$ to solve for $$ R^2 $$:

$$
R^2 = k Q_1 Q_2 f.
$$

**Step 3:** Take the square root of both sides to isolate $$ R $$ (assuming $$ R $$ is positive):

$$
R = \sqrt{k Q_1 Q_2 f}.
$$
$$ R = \sqrt{k Q_1 Q_2 f} $$

Make \( R \) the subject of the formular \[ \frac{1}{f}=k \frac{Q_{1} Q_{2}}{R^{2}} \]