Sorry to barge in on your topic, but it's kinda related.
Here follows a quiz, one I'm not quite solving yet:
So you connect a 220V 125Hz supply across a coil, the current in the coil reaches 692mA after 3.2ms, and then the circuit is switched off, probably using a switch between the supply and coil - hehehe......
What would the final steady value of current be?
Any educated guesses?
The final steady state current for any open circuited coil is zero. All the rest of the information is spurious. In practice something nasty happens when you open the switch (arcing typically), but ultimately the current is interrupted and drops to zero.