Which physical factor does NOT affect inductance?

Inductance is a property of an electrical component that reflects its ability to store energy in a magnetic field when electric current flows through it. The factors that affect inductance include the number of turns in the coil, the length of the coil, and the permeability of the core material.

The number of turns directly influences the amount of magnetic field produced; more turns generally increase inductance. The length of the coil impacts how tightly the magnetic lines of force are concentrated, with shorter coils producing higher inductance. The permeability of the core material determines how easily the magnetic field can be established and maintained within the coil, significantly affecting inductance.

In contrast, capacitance of nearby capacitors does not directly affect the inductance of a coil. While capacitors and inductors can interact when they are part of an oscillating circuit or when placed in proximity to each other, the fundamental property of inductance itself—how a coil behaves in response to alternating current and changes in current—remains unaffected by the capacitance of nearby components. Therefore, this factor does not have a direct role in determining the inductance of a coil.