almost correct, the "I-out" or electrical discharge doesn't create a magnetic field. what happens is first your power is turned on and you create a field. the properties of this fields speed and strength are governed by v=IR, the voltage you put in, the resistance of your winding based on the wires gauge and length, and the amps that that level of resistance allows. but now your field is built, your rotor has been pulled in roughly halfway in, you cut the power off, sharply, (careful here, i hope i am discribing it right) at the very instant you shut the power off, the field wants to flip the polarity and disappear instantly, like less than nanoseconds, but it cant, the copper winding has a level of impedance. this impedance slows down the rate of change or speed at which the field can collapse. this impedance also gives us our voltage out "your I-out" as the field collapses. the level of voltage you get is governed by the impedance of the coil, not V=IR when the field is built. going back to the rotor, first it allready got pulled in part of the way when we built the field, and since iron doesnt care about N/S polarity it continues to get pulled in "as the field is collapsing" you see, your not creating a field when you get the electrical discharge your collapsing it. at least not yet.....

for starters stick with the basic circuit until you fully understand it, and just dump the discharge into a battery, capacitor, lightbulb, or a high watt low ohm block resistor. (ive done them all, its a lot of fun to see how different the motor performs with the different output types!!) currently i am working on another output type, a separate winding, this is a little more difficult, we know from the movie that we dont want 2 different magnetic fields acting against each other in the "same winding" at the same time. but..... if we had another winding electrically isolated from the first but physically part of the same motor we could discharge the output voltage through it, driving electrons through it, building a magnetic field in the "second winding", wiring the circuit so the polarity of both the collapsing field in the first winding and the growing field in the second winding are in "attraction with each other" not in "opposition against each other". i am hoping this will build a stronger or more constant pull on the rotor. giving me more work out the shaft and possibly less needed amperage going in to the motor.

hope that helps!
Eric