Originally Posted by HandyPete
Sorry I don't have the time nor the talent to explain just how far off this remark is. Z does not equal E/I !!!! and no, you cannot measure the DC resistance to find reactance...NOT! (hint: iron has something to do with the answer)
Z=E/I=R + jXL
We already know Z. Once you know R you can calculate XL (at 60 Hz), and you know XL "is at right angles" to R.
If R = XL = 4500 ohms then Z would = 6364/45°
It's vector algebra.
Probably, though, the Z is somewhat dependent on the position of the iron slug in the solenoid.