Point charge 
and 
are kept at points 
and 
respectively. Electrical potential will be zero at points
A
and 
B
and 
C
and 
D
and 
Text Solution
Verified by ExpertsThe correct answer is:
C
Potential will be zero at two points
At internal point (M) : 
⇒ ⇒ l = 2
So distance of M from origin; x = 6 – 2 = 4
At exterior point (N) : 
⇒ ⇒ 
So distance of N from origin, x = 6 + 6 = 12
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