Inductor is an electrical component that stores energy in magnetic field.
The inductor is made of a coil of conducting wire.
In an electrical circuit schematics, the inductor marked with the letter L.
The inductance is measured in units of Henry [L].
Inductor reduce current in AC circuits and short circuit in DC circuits.
Inductor picture
Inductor symbols
| Inductor | |
|---|---|
| Iron core inductor | |
| Variable inductor |
Inductors in series
For several inductors in series the total equivalent inductance is:
LTotal = L1+L2+L3+...
Inductors in parallel
For several inductors in parallel the total equivalent inductance is:
Inductor's voltage
Inductor's current
Energy of inductor
AC circuits
Inductor's reactance
XL = ωL
Inductor's impedance
Cartesian form:
ZL = jXL = jωL
Polar form:
ZL = XL∠90º