## Number of Turns Required for a Toroidal Inductor, AL Given Per Hundred Turns.

MathML formula | Formula Image | Straight text formula |
---|---|---|

$N=100x\text{exception 25:}$ | N = 100 x ( ( L_{µH} / A_{L} ) ^ 0.5 ) | |

${L}_{\mathrm{\mu H}}={A}_{L}{\left(\frac{N}{100}\right)}^{2}$ | L_{µH} = A_{L} ( N / 100 )^2 |

Where

N = number of inductor winding turns, dimensionless

L_{µH} = inductance, µH

A_{L} = core nominal inductance, µH per 100 turns

## Number of Turns Required for a Toroidal Inductor, AL Given Per Thousand Turns.

MathML formula | Formula Image | Straight text formula |
---|---|---|

$N=1000x\text{exception 25:}$ | N = 1000 x ( ( L_{µH} / A_{L} ) ^ 0.5 ) | |

${L}_{\mathrm{\mu H}}={A}_{L}{\left(\frac{N}{1000}\right)}^{2}$ | L_{µH} = A_{L} ( N / 1000 )^2 |

Where

N = number of inductor winding turns, dimensionless

L_{µH} = inductance, µH

A_{L} = core nominal inductance, µH per 1000 turns