What is Reactance?Reactance (also known as electrical reactance) is defined as the opposition to the flow of current from a circuit element due to its inductance and capacitance. Greater reactance leads to smaller currents for the same applied voltage. Reactance is similar to electric resistance, although it differs in several respects.When an alternating current passes through the electric circuit or element, the phase, and amplitude of current will change. The reactance is used to compute this