Question
Question: Two similar charges of +*Q* as shown in figure are placed at points *A* and *B*. – *q* charge is pla...
Two similar charges of +Q as shown in figure are placed at points A and B. – q charge is placed at point C midway between A and B. – q charge will oscillate if

A
It is moved towards A
B
It is moved towards B
C
It is moved along CD
D
Distance between A and B is reduced
Answer
It is moved along CD
Explanation
Solution
When – q charge displaced along CD, a restoring force act on it which causes oscillation.