Answer:
BC
Explanation:
A) In a uniform field , dipole can remain in rotational equilibrium as well as linear equilibrium . So statement is wrong.
A dipole whose moment vector is not aligned with a uniform electric field will twist around toward being aligned. Moment vector is aligned along the axis of the dipole. In this position torque acting on the dipole is zero so it is in rotational equilibrium.
On the dipole only torque acts and no net force acts in case of uniform electric field. In case of non uniform magnetic field, both torque and force exists. each pole experiences electric force of equal magnitude.