rheostat
Pronunciación: [ˈriːəʊstæt]
Palabra
Contexto: «electrical engineering»
(noun) a device that controls the flow of electricity in a circuit by changing the resistance. It's like a special knob that lets you make a light dimmer or brighter by adjusting how much electricity flows through it.
Ejemplo
She used a rheostat to make the lamp shine brighter when she was reading.
Ejemplo
The old light switch couldn't change the brightness because it didn't have a rheostat.
Ejemplo
Do you know how a rheostat works to control the light?
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