Which one among the following laws states that magnetic monopoles do not exist?

Gauss's law for magnetism states that the total magnetic flux through a closed surface is zero. This fundamental principle implies that magnetic monopoles do not exist; instead, magnetic poles always occur in pairs (north and south) [1]. Mathematically expressed as ∇·B = 0, it signifies that there is no net magnetic field outflow from a closed surface, as every field line entering the surface must also exit it. In contrast, Newton's laws describe the relationship between motion and forces, Pascal's law pertains to fluid pressure, and Ampere's law relates magnetic fields to the electric currents that produce them [2]. Therefore, Gauss's law is the specific physical law that confirms the non-existence of isolated magnetic charges or monopoles.

Sources

1. [1] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 5: Earths Magnetic Field (Geomagnetic Field) > 5. Earth's Magnetic Field (Geomagnetic Field) > p. 65
2. [2] Science , class X (NCERT 2025 ed.) > Chapter 12: Magnetic Effects of Electric Current > 12.3 FORCE ON A CURRENT-CARRYING CONDUCTOR IN A MAGNETIC FIELD > p. 202