Question

Coulomb’s Law F = k qQ/r^2 relates the force F between two charges q and Q, which are a distance of r units apart. Choose the formula that represents this when solved for k.

Answer 1

Answer

$\frac{F{r}^{2}}{qQ} = k$

Step-by-step explanation:

$F = k \times \frac{qQ}{ {r}^{2} }$

$F{r}^{2}= k \times qQ$

$\frac{F{r}^{2}}{qQ} = k$

Answer 2

Answer:

The formula for Coulomb's law$\[F = k\frac{{qQ}}{{{r^2}}}.\]$

Step-by-step explanation:

Evaluate the formula.

$\[\begin{array}{l} \Rightarrow F = k\frac{{qQ}}{{{r^2}}}\\ \Rightarrow k = \frac{{F{r^2}}}{{qQ}}\end{array}\]$

Hence, the formula for k is $\[\frac{{F{r^2}}}{{qQ}}.\]$