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What is the Geometrical Shape of Equipotential Surfaces Due to a Single Isolated Charge? - Physics

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प्रश्न

What is the geometrical shape of equipotential surfaces due to a single isolated charge?

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उत्तर

For an isolated charge the equipotential surfaces are co-centric spherical shells and the distance between the shells increases with the decrease in electric field.

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Equipotential Surfaces
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2012-2013 (March) Delhi Set 2

संबंधित प्रश्‍न

Draw a sketch of equipotential surfaces due to a single charge (-q), depicting the electric field lines due to the charge


A man fixes outside his house one evening a two metre high insulating slab carrying on its top a large aluminium sheet of area 1 m2. Will he get an electric shock if he touches the metal sheet next morning?


What are the forms of energy into which the electrical energy of the atmosphere is dissipated during a lightning?
(Hint: The earth has an electric field of about 100 Vm−1 at its surface in the downward direction, corresponding to a surface charge density = −10−9 C m−2. Due to the slight conductivity of the atmosphere up to about 50 km (beyond which it is good conductor), about + 1800 C is pumped every second into the earth as a whole. The earth, however, does not get discharged since thunderstorms and lightning occurring continually all over the globe pump an equal amount of negative charge on the earth.)


Draw the equipotential surfaces due to an electric dipole. Locate the points where the potential due to the dipole is zero.


A particle of mass 'm' having charge 'q' is held at rest in uniform electric field of intensity 'E'. When it is released, the kinetic energy attained by it after covering a distance 'y' will be ______.


Equipotentials at a great distance from a collection of charges whose total sum is not zero are approximately.


A unit charge moves on an equipotential surface from a point A to point B, then ______.

If a unit positive charge is taken from one point to another over an equipotential surface, then ______.

Consider a uniform electric field in the ẑ direction. The potential is a constant ______.

  1. in all space.
  2. for any x for a given z.
  3. for any y for a given z.
  4. on the x-y plane for a given z.

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


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