If the two are the same size, the inductance will be approximately the sum of the inductances of the separate toroids wound with the same number of turns. So for two identical cores the inductance will be about double for the same number of turns. You can see this by calculating the H field from Ampere's law making the usual assumption that the windings are equivalent to a uniform current. The magnetic field is the same as in the separate toroids. The magnetic energies then just add so the inductances add.
73 Kevin w9cf Dave G. wrote: > > Next dumb question.... > What is the effect on inductance of stacki two toroids together?? > > -- > Dave G. KK7SS > '65 MK III Sprite in Richland, WA > > If life begins at 50, why am I falling apart ?! > _______________________________________________ > Elecraft mailing list > Post to: [email protected] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > > -- View this message in context: http://n2.nabble.com/HELP%21-Permeability-of-Ferrite-Cores...-tp1086003p1091331.html Sent from the Elecraft mailing list archive at Nabble.com. _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
