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 K times
• B. remains unchanged
• C. decreases K times
• D. increases $K^{-1}$ times

Answer 1

The correct option is C decreases K times

As, $F_m=\frac{F_o}{K}$
Where $K$ is dielecric constant.

$\therefore$ the maximum force decreases by $K$ times