A simple resistor puts reactive power back together again if this reactive power is a full half cycle of separation
between current and voltage (due merely to the reversal of voltage rather than caused by reversal of current). But
this reformation is limited to within the resistor's domain. Yet, an illuminative resistor such as a spark gap will
transfer this influence (at least for a short range) turning a neighboring coil into a reactant capacitor in which
current leads voltage by 90 degrees rather than lags voltage by that amount as in a normal reaction of an inductor.