Question

Assertion(A): Force between two point charges at rest is not changed by the presence of a third point charge between them.
Reason (R): Force between two charges depends on the magnitude of the two charges and separation between them. then,

• A. A is true but R is false
• B. R is true but A is false
• C. Both A and R are true and R is the correct explanation of A
• D. Both A and R are true and R is not the correct explanation of A

Answer 1

The correct option is C Both A and R are true and R is the correct explanation of A

We know that force between two charges $q_{1}and{q}_2$ separated by a distance $d$ is given by
$F=\frac{k{q}_1{q}_2}{d^2}$
It does not depend on any-other charge present in between them (Though the net force changes but force between the two charges does not change).