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Depict the Equipotential Surface Due to (I) an Electric Dipole, (Ii) Two Identical Positive Charges Separated by a Distance. - Physics

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प्रश्न

Depict the equipotential surface due to
(i) an electric dipole,
(ii) two identical positive charges separated by a distance.

टीपा लिहा

उत्तर

Equipotential surfaces for (a) a dipole and (b) two identical positive charges are shown in Figure.

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Notes

Some equipotential surfaces for (a) a dipole, (b) two identical positive charges.

Equipotential Surfaces
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
2014-2015 (March) Ajmer Set 2

संबंधित प्रश्‍न

The discharging current in the atmosphere due to the small conductivity of air is known to be 1800 A on an average over the globe. Why then does the atmosphere not discharge itself completely in due course and become electrically neutral? In other words, what keeps the atmosphere charged?


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.)


Why is there no work done in moving a charge from one point to another on an equipotential surface?


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


Find the amount of work done in rotating an electric dipole of dipole moment 3.2 x 10- 8Cm from its position of stable equilibrium to the position of unstable equilibrium in a uniform electric field if intensity 104 N/C.  


S1 and S2 are the two imaginary surfaces enclosing the charges +q and -q as shown. The electric flux through S1 and S2 are respectively ______.


Consider the following statements and select the correct statement(s).

  1. Electric field lines are always perpendicular to equipotential surface.
  2. No two equipotential surfaces can intersect each other.
  3. Electric field lines are in the direction of tangent to an equipotential surface.

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.

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.

What is meant by an equipotential surface?


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