Question

An electric charge $q$ exerts a force $F$ on a similar electric charge $q$ separated by a distance $r$. A third charge $q/4$ is placed midway between the two charges. Now, the force $F$ will

• A. become $F/3$
• B. become $F/9$
• C. become $F/27$
• D. remain $F$

Answer 1

Answer: (D)

Force between two charges does not depend upon the presence or absence of third charge.