reactance
含义: The component of impedance in an AC circuit caused by capacitance or inductance, representing opposition to current flow that is out of phase with the voltage, measured in ohms.
Reactance differs from resistance in that it does not dissipate energy as heat but instead stores and releases it within electric and magnetic fields. Inductive reactance increases with frequency, while capacitive reactance decreases. In psychology, reactance refers to a motivational reaction against perceived threats to freedom — an entirely separate usage that has become well established in social science literature.
例句
- At higher frequencies the inductive reactance of the coil increased, effectively blocking the passage of high-frequency signals. 在较高频率下,线圈的感性电抗增大,有效地阻止了高频信号的通过。A frecuencias más altas, la reactancia inductiva de la bobina aumentaba, bloqueando eficazmente el paso de las señales de alta frecuencia.周波数が高くなるとコイルの誘導性リアクタンスが増加し、高周波信号の通過を効果的に遮断した。주파수가 높아질수록 코일의 유도성 리액턴스가 증가하여 고주파 신호의 통과를 효과적으로 차단했다.
- The capacitive reactance of the filter was tuned to pass only frequencies below the cutoff threshold. 滤波器的容性电抗被调整为只允许截止频率以下的频率通过。La reactancia capacitiva del filtro se ajustó para dejar pasar solo las frecuencias por debajo del umbral de corte.フィルタの容量性リアクタンスは、カットオフ周波数以下の信号のみを通過させるように調整された。필터의 용량성 리액턴스는 차단 주파수 이하의 신호만 통과시키도록 조정되었다.
- In psychology, reactance theory explains why people sometimes do the opposite of what they are told when they feel their autonomy is threatened. 在心理学中,电抗理论解释了为什么人们在感到自主权受到威胁时,有时会做出与被要求相反的行为。En psicología, la teoría de la reactancia explica por qué las personas a veces hacen lo contrario de lo que se les dice cuando sienten amenazada su autonomía.心理学では、リアクタンス理論は、人々が自律性を脅かされていると感じたとき、指示と正反対の行動をとることがある理由を説明している。심리학에서 리액턴스 이론은 사람들이 자율성을 위협받는다고 느낄 때 지시와 정반대의 행동을 하는 이유를 설명한다.
发音
用法指南
语境: scientific, academic
语气: neutral
起源与历史
From Latin reactus, past participle of reagere (to act back), combined with the suffix -ance. The electrical sense was established in the late 19th century; the psychological meaning was introduced by Jack Brehm in 1966.
文化背景
Era: Modern
Generation: All ages
Social background: Universal
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