Question

What does coulomb's law of attraction and repulsion states?

• A. F is directly proportional to $q_1{q}_2$ and inversely proportional to $(r_{12}{)}^2$
• B. F is directly proportional to $q_1{q}_2$ and inversely proportional to $\left(r_{12}\right)$
• C. F is indirectly proportional to $q_1{q}_2$ and directly proportional to $(r_{12}{)}^2$
• D. None

Answer 1

The correct option is A F is directly proportional to $q_1{q}_2$ and inversely proportional to $(r_{12}{)}^2$

The Coulomb law is the force between two charges $q_1$ and $q_2$ when the separation between them is $r_{12}$.

Here , $F=\frac{k{q}_1{q}_2}{r_{12}^2}$

Thus, F is proportional to $q_1{q}_2$ and invewrsely proportional to $r_{12}^2$.