Analogies between magnetic circuits and electrical circuits are easy to be made by comparing electric circuit and magnetic circuit.

- The magnetic flux Φ which flows( not actually flow but sets up) through a magnetic circuit, corresponds to the electrical current / which flows through an electrical circuit;

- the magneto-motive force
**MM**, corresponds to the electromotive force*F**V (voltage)*;

- reluctance
*S*of a magnetic conductor by lenght,area of*X-*section and permeability, corresponds to resistance*R*of an electrical conductor by lenght,*area of X-*section and conductivity

- finally Hopkison's Law
*MMF*=*R*.Φ corresponds to Ohm's Law*EMF(V)*=*IR*

We can also define the permeance of a magnetic circuit

*P*= 1/*S,*which corresponds to*G*= 1/*R*conductance of an electrical circuit.Magnetic circuit | Electrical circuit |

Flux (Φ) | Current ( I) |

Magnetomotive force(F) | Electromotive force ( V) |

Reluctance (R) | Resistance ( R) |

Permeance (P) | Conductance ( G) |

Hopkison's Law (F = R.Φ) | Ohm's Law ( V = R.I) |