Question

What will happen to the Coulomb's force, if the distance between the two point charges is
(i) doubled
(ii) halved

Answer 1

Ans. According to Coulomb's law
i F = k
'2 The Coulomb's force is inversely proportional to the square of the distance between them, thus
(i) if we double the distance, the Coulomb's force will reduce to one fourth.
(ii) if we reduce the distance to half, the Coulomb's force will become four times.