Question

When air is replaced by a dielectric medium of constant $K$, the maximum force of attraction between two charges separated by a distance :

• A. increases $\frac{1}{K}$ times
• B. increases $K$ times times
• C. remains same
• D. decreases $K$ times

Answer 1

Answer: (D)

As, $F_m=\frac{F_o}{K}$
Where $K$ is dielecric constant.
$\therefore$ the maximum force decreases by $K$ times