? asked in Science & MathematicsEngineering · 1 decade ago

Modern Thermostats use an electrical component to make them work correctly. What is it called?

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3 Answers

  • guru
    Lv 6
    1 decade ago
    Favorite Answer

    it depends on the definition of modern

    bi-metal springs were very popular in the 1970

    before that it was a mercury switch

    now it is a micro-controller with very complex algorithm

    for some time, there were electronic thermostats

    the sensing device was often a thermistor, it is a resistor whose value changes with temperature

    more sophisticated ones used a PN junction


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  • Thermistor.


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  • Anonymous
    1 decade ago

    bi-metal strips and quick silver (mercury)

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