Can mutual inductance between two coils be increased by decreasing the distance between them?

Mutual inductance is a phenomenon that occurs when two inductors are placed in proximity to each other, allowing the magnetic field generated by one coil to induce a voltage in the other coil. The mutual inductance between two coils can indeed be increased by decreasing the distance between them. As the distance between the coils decreases, the strength of the magnetic field that one coil produces will increasingly affect the other coil, leading to a stronger coupling effect.

Furthermore, mutual inductance is influenced by other factors as well, such as the number of turns in the coils, the core material around which the coils are wound, and their orientations. However, the essential relationship governing mutual inductance, especially in the context of distance, is that a shorter distance enhances the magnetic interaction, resulting in a higher mutual inductance. Therefore, it is accurate to state that bringing the coils closer together increases their mutual inductance.