I have little experience with magnetodynamics. Any help would be greatly appreciated.
I have an overdamped RLC circuit as the firing mechanism of a coilgun. A small cylinder of iron (a nail or something) will be fired through the solenoidal inductor due to magnetization.
Since the magnetic field will be changing rapidly, dying out after 10 ms or so, can I still use the superposition principle to find the total magnetic field by multiplying the number of loops by the field due to each loop?
Secondly, can I ignore the change in inductance caused by the entry of iron into the solenoid?
Thanks in advance.