# Air core inductor

Air core inductor

Air core inductors that consist of a coil of conducting wire with no core. They are used in all sorts of electronic devices like radios and computers.

### Formulas

The following formulas can be used to calculate the inductance, length, diameter and number of turns of an air core inductor and the total length of wire used.

L is the symbol for inductance and is measured in henry (H).

l is the symbol for length and is measured in meter (m).

d is the symbol for diameter and is measured in meter (m).

n is the number of turns

l _{W } is the symbol for wire length and is measured in meter (m).