Question

What is the coulomb's law in electrostatics?

Answer 1

The coulomb's law in electrostatics:

The amount of the electrostatic force of attraction, as well as repulsion involving two-point charges, is approximately proportional to the product of their magnitudes as well as inversely proportional to the square of their distance.

Mathematical representation:

Mathematically, coulomb's law can be represented as

$\mathrm{F}\mathrm{\alpha }{\mathrm{q}}_1{\mathrm{q}}_2$

and,

$\mathrm{F}\mathrm{\alpha }\frac{1}{{\mathrm{r}}^2}$

then,

${\mathrm{F}}_{\mathrm{e}}=\frac{{\mathrm{Kq}}_1{\mathrm{q}}_2}{{\mathrm{r}}^2}$

Here,

$\mathrm{F}$ is electrostatic force between two charges.

${\mathrm{q}}_1$ is the first charge.

${\mathrm{q}}_2$ is the second charge.

$\mathrm{r}$ is the distance between both charges.

$\mathrm{K}$ is coulomb's constant.

Therefore, the attraction or repulsion is directed along the line formed by the two charges in the coulomb's law.