# Self-inductance factor

## Description

Self inductance factor of a solenoid depends on the number of turns, the cross section area, the length of the solenoid and the material within the solenoid

Related formulas## Variables

L | Self inductance factor (H) |

μ_{0} | magnetic constant |

μ_{r} | Relative magnetic permeability of the material (dimensionless) |

N | Number of turns (dimensionless) |

A | Cross section area (m^{2}) |

l | Length (m) |