rheostat

/ˈɹiː.ə.stat/ noun C1

a device that controls electric current by varying resistance

Word Origin A 'rheostat' is a device that controls electric current — literally 'flow-stander.' It combines Greek 'rheos' (a flowing, current) and 'statos' (standing, fixed). So it makes the flow stand still, regulating it. The same roots give us 'rheology' (study of flow), 'diarrhea' (flow through), and 'static' (standing), 'thermostat' (heat-stander). The PIE root *sreu- means 'to flow,' and *sta- 'to stand.'

noun a device that controls electric current by varying resistance C1

You can adjust the brightness of the lamp by turning the rheostat, which changes the electrical resistance.

(名词) 变阻器;电阻箱 【通过改变电阻来控制电流的装置】

通过转动变阻器来改变电阻,你可以调节灯的亮度。

(sustantivo) reóstato; reostato; resistencia variable [un dispositivo que controla la corriente eléctrica variando la resistencia]

Puedes ajustar el brillo de la lámpara girando el **reóstato**, que cambia la resistencia eléctrica.

(nom) rhéostat [Dispositif électrique permettant de faire varier l'intensité du courant en modifiant la résistance du circuit.]

On peut régler la luminosité de la lampe en tournant le **rheostat**, qui modifie la résistance électrique.

(Substantiv) Regelwiderstand; Rheostat [ein Gerät, das den elektrischen Strom durch Veränderung des Widerstands reguliert.]

Man kann die Helligkeit der Lampe einstellen, indem man den **rheostat** dreht, der den elektrischen Widerstand verändert.

(名詞) 抵抗を変化させて電流を制御する装置

**レオスタット**のつまみを回すと電気抵抗が変わり、ランプの明るさを調整できる。

(substantivo) reostato; resistor variável [um dispositivo que controla a corrente elétrica por meio da variação da resistência]

Você pode ajustar o brilho da lâmpada girando o reostato, que altera a resistência elétrica.

noun An electrical resistor, with two terminals, whose resistance is continuously variable by moving a knob or slider. countable

The technician adjusted the lighting level using the rheostat on the wall.

(名词) 变阻器;可变电阻;滑动变阻器 【可变电阻器】

技术员通过墙上的变阻器调节灯光亮度。

(sustantivo) reostato; reóstato [Resistor eléctrico, con dos terminales, cuya resistencia es variable de forma continua al mover una perilla o cursor.]

El técnico ajustó el nivel de iluminación usando el reóstato en la pared.

(nom) rhéostat [Résistance électrique à deux bornes dont la valeur peut être modifiée en continu au moyen d'un bouton ou d'un curseur.]

Le technicien a réglé l'intensité lumineuse à l'aide du rhéostat mural.

(Substantiv) Regelwiderstand; Potentiometer; Stellwiderstand [Ein elektrischer Widerstand mit zwei Anschlüssen, dessen Widerstand durch Drehen eines Knopfes oder Verschieben eines Schiebers stufenlos verändert werden kann.]

Der Techniker regulierte die Lichtstärke mit dem **rheostat** an der Wand.

(名詞) ノブやスライダーの操作によって抵抗値を連続的に変化させることができる、二つの端子を備えた電気抵抗器。

技術者は壁のレオスタットを使って照明の明るさを調節した。

(substantivo) reostato; reóstato [Um resistor elétrico, com dois terminais, cuja resistência é continuamente variável ao mover um botão ou cursor.]

O técnico ajustou o nível de iluminação usando o reostato na parede.

Word parts: rheo + stat

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