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Electrostatic Potential and Capacitance — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsElectrostatic Potential and Capacitance2 Marks
Question
Describe schematically the equipotential surfaces corresponding to:
  1. a constant electric field in the z-direction.
  2. a field that uniformly increases in magnitude but remains in a constant (say, z) direction.
  3. a single positive charge at the origin, and.
  4. a uniform grid consisting of long equally spaced parallel charged wires in a plane.
✓

Answer

  1. Equidistant planes parallel to the x-y plane are the equipotential surfaces.
  2. Planes parallel to the x-y plane are the equipotential surfaces with the exception that when the planes get closer, the field increases.
  3. Concentric spheres centered at the origin are equipotential surfaces.
  4. A periodically varying shape near the given grid is the equipotential surface. This shape qraduallv reaches the shape of planes parallel to the grid at a larger distance.

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