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Depict the equipotential surfaces for a system of two identical positive point charges placed a distance(d) apart?

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Question

Depict the equipotential surfaces for a system of two identical positive point charges placed a distance(d) apart?

Short/Brief Note
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Solution

An equipotential surface is a surface with a constant value of the potential at all points on the surface.


Equipotential surfaces for two identical positive charges.

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2009-2010 (March) Delhi set 3

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Statement - 1: For practical purpose, the earth is used as a reference at zero potential in electrical circuits.

Statement - 2: The electrical potential of a sphere of radius R with charge Q uniformly distributed on the surface is given by `Q/(4piepsilon_0R)`.


Which of the following statements is/are correct for equipotential surface?
  1. The potential at all the points on an equipotential surface is same.
  2. Equipotential surfaces never intersect each other.
  3. Work done in moving a charge from one point to other on an equipotential surface is zero.

Can two equipotential surfaces intersect each other? 


Equipotential surfaces ______.

  1. are closer in regions of large electric fields compared to regions of lower electric fields.
  2. will be more crowded near sharp edges of a conductor.
  3. will be more crowded near regions of large charge densities.
  4. will always be equally spaced.

Draw equipotential surfaces for (i) an electric dipole and (ii) two identical positive charges placed near each other.


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