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प्रश्न
Depict the equipotential surfaces due to an electric dipole.
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उत्तर
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संबंधित प्रश्न
An electric dipole of dipole moment`vecp` consists of point charges +q and −q separated by a distance 2a apart. Deduce the expression for the electric field `vecE` due to the dipole at a distance x from the centre of the dipole on its axial line in terms of the dipole moment `vecp`. Hence show that in the limit x>> a, `vecE->2vecp"/"(4piepsilon_0x^3)`
- Define torque acting on a dipole of dipole moment \[\vec{p}\] placed in a uniform electric field \[\vec{E}\] Express it in the vector from and point out the direction along which it acts. Express it in the vector from and point out the direction along which it acts.
- What happens if the field is non-uniform?
- What would happen if the external field
\[\vec{E}\] is increasing (i) parallel to \[\vec{p}\] and (ii) anti-parallel to \[\vec{p}\]?
It is said that the separation between the two charges forming an electric dipole should be small. In comparison to what should this separation be small?
An electric dipole of moment p is placed parallel to the uniform electric field. The amount of work done in rotating the dipole by 90° is ____________.
An electric dipole consists of charges +q and −q separated by a distance 2a. Which of the following statements about the dipole is correct?
The direction of the dipole axis is defined as the line pointing from:
For a short dipole, the ratio of the electric field on the axial line to that on the equatorial line (at the same distance r) is:
The potential energy of a dipole in an external electric field is given by:
When a dipole is anti-aligned with the external electric field (θ = 180°), the potential energy is:
On the axial line of a dipole (θ = 0°), the electric potential is:
