Verified Solution • 2025–26 Session
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QJEEAdv19Ph7247: JEE Advanced 2019 Physics - Class 12 JEEAdv19Ph7247 Solution: An electric dipole with dipole moment p 0 2 ( i ^ + j ^ ) is…
An electric dipole with dipole moment is held fixed at the origin O in the presence of a uniform electric field of magnitude E0.

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, ( 0 is the permittivity of the free space, R >> dipole size)

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, (
Multiple Choice Options
- A The magnitude of total electric field on any two points of the circle will be same.
- B Total electric field at point B is E→B = 0
- C R=(p04π∈0E0)1/3
- D Total electric field at point A isE→A=2E0(i^+j^)
Step-by-Step Verified Solution
R >> Dipole size.
Circle is equipotential.
So, Enet should be perpendicular to surface hence,
At point B, net electric field will be zero.
EB = 0
Electric field at point A,
= 0
Circle is equipotential.
So, Enet should be perpendicular to surface hence,
At point B, net electric field will be zero.
EB = 0
Electric field at point A,