Whereas DC circuits have resistance, AC circuits often have resistance and another property, known as reactance. Impedance is the combination of resistance and reactance. ... Because it only affects changing current, reactance is specific to AC power and depends on the frequency of the current.

Is there reactance in a DC circuit?

When steady dc supply is connected, there is no change of flux and hence no induced EMF is developed and inductive reactance offered to steady DC supply is zero.

What is reactance in DC circuit?

In electrical circuits, reactance is the opposition presented to alternating current by inductance or capacitance. Greater reactance gives smaller current for the same applied voltage.