Question
Question: A charge –q is placed at (0, 0, – z) where z \<\< a. On releasing –q from this position–  where z << a. On releasing –q from this position–
A
– q will move towards z = –
B
– q will move towards z =
C
– q will move to and fro about the origin
D
– q will remain stationary at (0, 0, – z)
Answer
– q will move to and fro about the origin
Explanation
Solution
–q will experience a restoring force and will perform SHM