Question

What is the angle between the electric dipole moment and the electric field on the equatorial line of the dipole?

Answer 1

Definition:

1. The electric field amplitude or strength produced by an electric dipole near the equator location that is parallel to the dipole's axis.
2. They are also antiparallel, which is moving in opposing directions.

Therefore, $180°$ would be the angle between the dipole moment and the electric field.