Anything not inside the field when the current pulse came would simply be left behind.
Additional circuits are required to counteract the effect of the brief current pulses.
To read, a low current pulse is applied to the device.
The current pulses are short, 1 ns, so the average current is low.
They estimated the average current pulse of the X26 at 1 amp.
A current pulse was experienced each time a pole passed over the coil.
They require a starting current pulse to operate, usually supplied by capacitors.
And so the current pulse might be some factors of 10 smaller in total charge.
Such chargers use both positive and brief negative current pulses.
This means that is it highly unlikely for there to be two particles generating one current pulse.