Question

An electric dipole with dipole moment P_/Ã2 (ë+_) is held fixed at the origin O in the presence of an uniform electric field of magnitude E_. If the potential is constant on a circle of radius R centered at the origin
as shown in figure, then the correct statement(s) is/are :
(__ is permittivity of free space. R >> dipole size)
_
A. Total electric field at point A is E__=Ã2E_(ë+_).
_
B. Total electric field at point B is E_=0
C. R=( p_/4____E_)1/3
D. The magnitude of total electric field on any two points of the circle will be same.

Answer 1

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Explanation:

An electric dipole with dipole moment P_/Ã2 (ë+_) is held fixed at the origin O in the presence of an uniform electric field of magnitude E_. If the potential is constant on a circle of radius R centered at the origin