abstract:In electrical and electronic systems, reactance is the opposition of a circuit element to a change of electric current or voltage, due to that element's inductance or capacitance. A built-up electric field resists the change of voltage on the element, while a magnetic field resists the change of current.
The size of reversing electric potential may be changed and equilibriumbetween reactanceelectrical potential and reversing electrical potential may be brokenbymanual.