GEOLOGY

Detailed explanation-1: -The strength of the magnetic field is proportional to the closeness of the magnetic field lines. So, the lines are closer means the magnetic field is stronger.

Detailed explanation-2: -How close or far away an object is really counts in magnetism. The closer you stand to a magnet, the stronger the magnetic field will be. The farther away you are from a magnet, the weaker the magnetic field becomes.

Detailed explanation-3: -The magnetic field magnitude is proportional to the density of the lines. The closer together the field lines, the stronger the magnetic field. The more spread out they are, the weaker the magnetic field.

Detailed explanation-4: -Magnetic lines being close together mean a strong magnetic field and lines far apart from each other mean a weak magnetic field. The magnetic field is the strongest at the poles of a magnet, so the lines are closer to each other at poles.

Detailed explanation-5: -Magnetic Fields Varying as an Inverse Cube For both monopoles and dipoles, the field strength decreases as the distance from the source increases., often called the inverse square law. For electric dipoles, the field strength decreases more rapidly with distance; as R-3 .