I had great pictures on my thread. Sadly, they were hosted on photobucket so they are gone forever. You have to cut the bolt down, sneak the nut in place, tighten via the bolt while holding the nut, and use the Force.
Terry, If there is current run through the coils continuously and interrupted to make spark, then the DC math would be true for most of the running. For the transients you are right and the inductance would have to be figured in.