A) Potential is zero at a point on the axis which is \[x/3\]on the right side of the charge \[-\text{ }Q/4\]
B) Potential is zero at a point on the axis which is \[x/3\] on the left side of the charge - Q/4
C) There exist two points on the axis where electric field is zero
D) None of these.
Correct Answer: A
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