Rheostat

{
  "id": "MLC-T-IND-004841",
  "term": "Rheostat",
  "field": "Industrial and trades",
  "definition": "A two-terminal variable resistor used to control the current in a circuit. By adjusting its resistance, it changes the amount of current flowing through a load, making it useful for controlling motor speed, generator field excitation, or the brightness of lights. A rheostat operates according to Ohm's law, where increasing the resistance decreases the current for a given voltage.",
  "subject": "Energy and utilities",
  "translations": {
    "de": "Rheostat",
    "es": "reóstato",
    "fr": "rhéostat"
  },
  "url": "https://mlchart.com/terminology/industrial/rheostat/"
}