The angle of dip at the magnetic equator is 0 degrees. The magnetic dip angle or dip angle is the angle between the magnetic field lines and the horizontal plane. At the magnetic equator, the magnetic field lines are horizontal, so the angle of dip is zero. The magnetic equator is the location on the Earth's surface where the magnetic field is horizontal. At this location, the magnetic field lines are parallel to the Earth's surface, and there is no north-south component of the magnetic field.