Hopkinson's law (MMF)
Description
where R is the electrical resistance of that material. Hopkinson’s law is a counterpart to Ohm’s law used in magnetic circuits. In electronic circuits, Ohm’s law is an empirical relation between the EMF applied across an element and the current I it generates through that element. Hopkinson’s law can be interpreted either as an empirical equation that works for some materials, or it may serve as a definition of reluctance.
Related formulasVariables
| MMF | The Magnetomotive Force (A*turns) |
| Φ | The Magnetic Flux through the magnetic element (Wb) |
| Rm | The Magnetic Reluctance of the element (A*turns/Wb) |