# Formula Series circuit (inductance)

## Total inductance

Unit
Total inductance of $$n$$ coils connected in series. In this case, the individual inductances add up.

For two coils connected in series ($$n=2$$), the total inductance $$L$$ is the sum of the two individual inductances:$$L ~=~ L_1 + L_2$$

## Individual inductance

Unit
Inductances of individual coils connected in series. $$L_1$$ is the inductance of the first coil, $$L_2$$ is the inductance of the second coil and so on. $$L_n$$ is the inductance of the last, $$n$$th coil.