1896 F. Bedell xv. 302 The leakage flux varies inversely as the reluctance of the leakage path.
1962 D. R. Corson & P. Lorrain vii. 291 Let us consider a toroid of magnetic material with a localized winding... The leakage flux, that is, the flux of B which leaves the core, produces poles on the surface..and these poles contribute an intensity H within the iron.