Question

What is Coulomb's law?

Answer 1

Coulomb’s law:

1. According to Coulomb’s law, the force of attraction or repulsion between two charged bodies is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.
2. It acts along the line joining the two charges considered to be point charges.
3. Coulomb's law tells us that the force between two charges is proportional to the product of the charges.
4. Further the force is inversely proportional to the distance(squared) between the charges.
5. It provides the direction in which the force due to a charge on another charge is acting.
6. It helps in deriving Gauss' law in general form
7. $\overrightarrow{F}=\frac{k{q}_1{q}_2}{|{\overrightarrow{r}}_1-{\overrightarrow{r}}_2{|}^3}({\overrightarrow{r}}_1-{\overrightarrow{r}}_2)$, where $\overrightarrow{F}$ is the force between $q_1$ and $q_2$, $\overrightarrow{r_1}$ and ${\overrightarrow{r}}_2$ are the position vector of $q_1$ and $q_2$, and $k$ is coulomb constant.
8. Formula for Coulomb's law is $F=k\frac{q_1{q}_2}{r^2}$, where Electric$=$electric current, $q_1{q}_2=$charges , $k=$constant and $r=$distance of separation.