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Glite Dictionary
⚡ Opposition in circuits 🙅 Resistance to control
reactance

reactance

9.9
How much an inductor or capacitor stops alternating electric current, measured in ohms
  • noun
  • /riˈæktəns/
  • Specialized
translation icon : reactancia
  • The engineer calculated the reactance of the circuit to understand its performance in AC conditions.

Examples

  • The effect of lowering the loop inductance creates a shift in the frequency domain, resulting in a higher crossover frequency for the resistance and inductive reactance.

    Academic text (1999)

  • Where is the system reactance?

    Blog text (15)

  • So you need to solve for it in terms of reactance products and rate constants.

  • In this case, the inductive reactance, hence the admittance, remains the same.

    Academic text (2000)

  • It may be expressed as IX, where X, the reactance, is the imaginary part of the impedance.

    Academic text (2004)

  • To optimize the system's efficiency, you must account for the reactance in your calculations.

  • The increased reactance in the circuit caused a noticeable drop in the overall current flow.

Compounds

acoustic reactance
  • Specialized
8.9

The part of resistance to sound that comes from air moving and spring-like effects, not energy loss

Surface Forms

reactance singular
reactances plural

Morphology

reactance = react (opaque) = re + act + ance

The term 'reactance' in this context is specialized and technical, referring to electrical properties not immediately derivable from 'react'.

Etymology

Reactance comes from react ('to respond' or 'push back') plus the ending -ance, and is like the everyday word resistance. It refers to how parts like capacitors and inductors 'push back' against alternating electric current, so reactance measures that opposition in an AC circuit.