Question

Hello people ~
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

Explanation:

In di electric medium

The force is

• $\sf F_{dE}=\dfrac{1}{4K\pi\epsilon}\dfrac{q_1q_2}{R^2}$

So the force on air is decreased k times

Option C is correct