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Electrostatics: Equipotential Surfaces MCQ

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Equipotential SurfacesMediumQuestion 31448

Question

For a uniform electric field E in +x direction, equipotential surfaces are:
  1. A
    Planes parallel to x-axis
  2. B
    Planes perpendicular to x-axis (parallel to y-z plane)
    Correct
  3. C
    Spheres
  4. D
    Cylinders

Correct answer

Planes perpendicular to x-axis (parallel to y-z plane)

Explanation

V = −Ex + const. V = const means x = const — planes perpendicular to E.

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