reactance

As nouns the difference between reluctance and reactance

is that reluctance is unwillingness to do something while reactance is the opposition to the change in flow of current in an alternating current circuit, due to inductance and capacitance; the imaginary part of the impedance.

As nouns the difference between conductance and reactance

is that conductance is a measure of the ability of a body to conduct electricity; the reciprocal of its resistance while reactance is the opposition to the change in flow of current in an alternating current circuit, due to inductance and capacitance; the imaginary part of the impedance.