Question

what is the vector sum of the forces acting on a dipole placed in a uniform field​

Answer 1

Answer:

Let us assume we have a uniform electric field E (constant direction and magnitude) in some region of space, and a dipole moment vector makes an angle q with the field E. The positive charge feels a force qE, So the net force on a dipole in a uniform field is zero.

Force on dipole = qE-qE=0.

Even though the two forces on the ends of the dipole cancel as free vectors, they act at different points. This means that they give rise to a torque on dipole. The turning effect of this torque is to reduce the angle q towards zero, and make the dipole moment vector become parallel to the field.

hope its helpful☺️☺️☺️