Question

What increases inductance?

Answer 1

1. The mathematical expression for inductance:
   $\mathrm{L}=\frac{{\mathrm{n}}^2\mathrm{\mu A}}{\mathcal{l}}$
   where, $\mathrm{L}$ represents inductance, $\mathrm{n}$ represents the number of turns, $\mathrm{\mu }$ represents permeability of core material, $\mathrm{A}$represents the area of the coil, and $\mathcal{l}$ represents the length of the coil.
2. Inductance can be increased by increasing the number of turns of a coil.
3. Greater the number of turns the magnetic lines passing through the number of turns increase, thus increasing the inductance.
4. Inductance can be increased by increasing the area of the coil, as the area of the coil increases the magnetic flux linking also increases
5. Inductance can be increased by decreasing the length of the coil.
6. Inductance can be increased by increasing the magnetic permeability.