reactance
LowFormal/Technical
Definition
Meaning
The opposition to the flow of alternating current (AC) caused by inductance or capacitance in an electrical circuit.
In psychology, a motivational reaction against rules or restrictions that threaten specific behavioral freedoms, leading individuals to act in ways that restore their perceived freedom.
Linguistics
Semantic Notes
Primary usage is technical/engineering. Psychological usage is specialized but established in social psychology and behavioral science.
Dialectal Variation
British vs American Usage
Differences
No major differences in meaning. British texts may show slightly more frequent use of 'inductive reactance' and 'capacitive reactance' as distinct terms in engineering contexts.
Connotations
Neutral technical term in both varieties. Psychological usage carries a negative connotation of resistance to persuasion or control.
Frequency
Rare in everyday conversation. Mostly confined to engineering, physics, and psychology textbooks/journals.
Vocabulary
Collocations
Grammar
Valency Patterns
The [Noun] has/showed a reactance of [Number] ohms.[Person/Group] exhibited reactance against/ to [Rule/Restriction].Increasing [Frequency/Inductance] raises the reactance.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Usage
Context Usage
Business
Rare. Potentially used metaphorically in organizational behavior to describe employee resistance to new policies.
Academic
Common in electrical engineering, physics, and psychology papers. Precise, technical usage expected.
Everyday
Virtually never used in casual conversation.
Technical
Primary domain. Used with precise numerical values (ohms) and formulas (X = 2πfL).
Examples
By Part of Speech
noun
British English
- The inductor's reactance limits the current at high frequencies.
- Brexit campaigns triggered significant reactance among some voters who felt their sovereignty was threatened.
American English
- You need to calculate the total reactance in the circuit.
- The strict new campus rules provoked reactance, leading to a series of protests.
Examples
By CEFR Level
- In simple terms, reactance is what makes an AC circuit behave differently from a DC circuit.
- The capacitor introduces a capacitive reactance that causes the current to lead the voltage.
- Adolescents often show reactance when parents impose what they see as arbitrary curfews.
- The net reactance of the RLC circuit determines its resonant frequency and bandwidth.
- Marketing messages perceived as overly manipulative can backfire due to psychological reactance, making consumers deliberately choose the opposite.
Learning
Memory Aids
Mnemonic
Think: REsistance to ACtion + CAPACITANCE/INDUCTANCE = REACTANCE. Or, a person's REACTION to a rule they perceive as limiting.
Conceptual Metaphor
FREEDOM IS A POSSESSION (psychological: threats to freedom trigger a reaction to reclaim it). FLOW IS OPPOSED (electrical: reactance opposes the flow of current).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'reaktantsiya' (реакция) meaning just 'reaction'. 'Reactance' is a specific technical term.
- In electrical contexts, it's not simply 'soprotivleniye' (сопротивление/resistance), which is for DC. It's 'reaktivnoye soprotivleniye' (реактивное сопротивление).
Common Mistakes
- Using 'reactance' interchangeably with 'resistance' in DC electrical contexts.
- Misspelling as 're-actance'.
- Using the psychological term to describe simple disagreement rather than a motivational state triggered by threatened freedoms.
Practice
Quiz
Psychological reactance is most likely to occur when:
FAQ
Frequently Asked Questions
No. In electrical engineering, resistance opposes direct current (DC), while reactance opposes the change in alternating current (AC). In psychology, resistance is a broader term for opposition, while reactance specifically refers to the motivational state of wanting to restore a threatened freedom.
No. The related verb is 'react'. 'Reactance' is exclusively a noun.
It is a well-established and common term within the field of social psychology and communication studies, but it is not a common word in everyday language.
Electrical reactance (X) is measured in ohms (Ω), just like resistance. Its value depends on the frequency of the AC signal and the inductance or capacitance in the circuit.