Inductor

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.

For several inductors in series the total equivalent inductance is:

L_Total = L₁+L₂+L₃+...

For several inductors in parallel the total equivalent inductance is:

$\frac{1}{L_{Total}}=\frac{1}{L_{1}}+\frac{1}{L_{2}}+\frac{1}{L_{3}}+...$

$v_L(t)=L\frac{di_L(t)}{dt}$

$i_L(t)=i_L(0)+\frac{1}{L}\int_{0}^{t}v_L(\tau)d\tau$

$E_L=\frac{1}{2}LI^2$

X_L = ωL

Cartesian form:

Z_L = jX_L = jωL

Polar form:

Z_L = X_L∠90º

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