A) only - q is in stable equilibrium
B) all the charges are in stable equilibrium
C) all the charges are in unstable equilibrium
D) none of the above
Correct Answer: C
Solution :
As net force on each charge is zero, therefore all the charges are in equilibrium. If we were to displace\[-q\]to the right, net force of attraction will be to the right which will displace it further. Therefore, equilibrium is unstable.You need to login to perform this action.
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