R m = V m Φ MathType@MTEF@5@5@+= feaagKart1ev2aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgaruWqVvNCPvMCG4uz 3bqee0evGueE0jxyaibaieYdi9WrpeeC0lXdi9qqqj=hEeeu0lXdbb a9frFj0xb9Lqpepeea0xd9s8qiYRWxGi6xij=hbba9q8aq0=yq=He9 q8qiLsFr0=vr0=vr0db8meGabaGacmGadiWaaiWabaabaiaafaaake aacaWGsbWaaSbaaSqaaiaab2gaaeqaaOGaeyypa0ZaaSaaaeaacaWG wbWaaSbaaSqaaiaac2gaaeqaaaGcbaGaeuOPdyeaaaaa@401D@
Note 1 to entry: The reluctance is the reciprocal of the permeance.
Note 2 to entry: The coherent SI unit of reluctance is henry to the power minus one, H–1.