Question:

Two stationary point particles with equal and opposite charges are at some fixed distance from each other. The points having zero electric potential lie on:

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For a dipole, equipotential surfaces near the midpoint are approximately cylindrical in shape.
Updated On: Dec 4, 2025
  • A sphere
  • A plane
  • A cylinder
  • Two parallel planes
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The Correct Option is B

Solution and Explanation

Step 1: Understanding the concept.
For two equal and opposite charges, the points of zero potential occur where the potentials due to both charges cancel out. These points are equidistant from both charges.

Step 2: Geometry of zero potential surface.
In three-dimensional space, the locus of points equidistant from both charges forms a cylindrical surface around the line joining them.

Step 3: Conclusion.
Thus, points having zero potential lie on a cylindrical surface.

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