An electric dipole is kept on the axis of a uniformly charged ring at distance d from the centre of the ring. The direction of the dipole moment is along the axis. The dipole moment is `p`, charge of the ring is `Q` & radius of the ring is `R`. The force on the dipole isA. `(pQ)/(3piepsilon_(0)sqrt(3)R^(2))`B. `(4pQ)/(3piepsilon_(0)sqrt(3)R^(2))`C. `(pQ)/(3piepsilon_(0)R^(2))`D. zero

An electric dipole is kept on the axis of a uniformly charged ring at

1.	An electric dipole is kept on the axis of a uniformly charged ring at distance d from the centre of the ring. The direction of the dipole moment is along the axis. The dipole moment is `p`, charge of the ring is `Q` & radius of the ring is `R`. The force on the dipole isA. `(pQ)/(3piepsilon_(0)sqrt(3)R^(2))`B. `(4pQ)/(3piepsilon_(0)sqrt(3)R^(2))`C. `(pQ)/(3piepsilon_(0)R^(2))`D. zero
Answer» Correct Answer - d Electric field due to ring and dipole moment are parallel to each other.

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