inductance

Gapped Core Inductance

Computes the inductance (µH), inductance factor AL (nH/turn²), and flux density per amp (gauss/A) for a gapped inductor core from the core length, gap area, gap length, relative permeability, and number of turns.

Inputs

Core Length(mm)

Effective magnetic path length of the core in millimetres

Gap Area(mm²)

Cross-sectional area of the air gap in square millimetres

Gap Length(mm)

Length of the air gap in millimetres

Relative Permeability

Relative permeability of the core material

Number of Turns

Number of winding turns

Results

⚠Relative permeability must be greater than zero

Inductance—µHTotal inductance of the gapped core inductor in microhenries

Inductance per Turn²—nHInductance factor AL in nanohenries per turn squared

Flux Density per Amp—gauss/AFlux density per ampere of current in gauss per amp