Question

Which of the following graphs shows the correct variation of force when the distance $r$ between two charges varies?

• A.
• B.
• C.
• D.

Answer 1

Answer: (D)

From Coulomb's law $F=\frac{K{q}_1{q}_2}{r^2}$
i.e., $F\propto \frac{1}{r^2}$ which is correctly shown by graph (d).