Point charges $ + 4q,\, - q$ and $ + 4q$ are kept on the $x - $axis at points $x = 0,\,x = a$ and $x = 2a$ respectively, then
Point charges $ + 4q,\, - q$ and $ + 4q$ are kept on the $x - $axis at points $x = 0,\,x = a$ and $x = 2a$ respectively, then
- [AIPMT 1988]
- A
Only $q$ is in stable equilibrium
- B
None of the charges are in equilibrium
- C
All the charges are in unstable equilibrium
- D
All the charges are in stable equilibrium
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- [JEE MAIN 2021]
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