(electronics, technology) An electrical resistor, with two terminals, whose resistance is continuously variable by moving a knob or slider.
rheostat
Definition, parts of speech, synonyms, and sentence examples for rheostat.
Editorial note
A current mirror with a rheostat is probably the simplest, though not generally ideal performance.
Quick take
(electronics, technology) An electrical resistor, with two terminals, whose resistance is continuously variable by moving a knob or slider.
Meaning at a glance
The clearest senses and uses of rheostat gathered in one view.
Definitions
Core meanings and parts of speech for rheostat.
noun
(electronics, technology) An electrical resistor, with two terminals, whose resistance is continuously variable by moving a knob or slider.
Example sentences
A current mirror with a rheostat is probably the simplest, though not generally ideal performance.
Broder clearly was able to control the temperature, whether it was via a rheostat dial or a touchscreen controller.
DC motors driven directly from the battery, probably with a large wire-wound rheostat to control the power.
The gas pedal on an EV isn't connected to a passive rheostat gating the entire power output of the vehicle.
My take is that PWM dimmers are dramatically more energy efficient than the old rheostat dimmers people used to use.
This rheostat would turn it into low voltage slightly lower current but it would still work fine for light gauge.
There were also variable speed controls that acted like a rheostat with continuous speed changes.
Someday, I may even take it apart and add a rheostat so I can adjust the click frequency.
At the other end, maybe something like the sliding rheostat on my toaster.
However, pre-1980s sewing machines have one huge disadvantage: they all had a [resistive] rheostat foot controller, which made maintaining low RRM practically impossible.
They can be dimmed with a rheostat or any incandescent light dimmer.
After some inspection he pointed out to me how the volume control rheostat (potentiometer) was worn out and what it would take to fix it.
Quote examples
The “switch” acts more like a “pain rheostat,” similar to a home thermostat that modulates temperature — the pain rheostat reacts to pain signals to modulate pain sensations.
A carbon arc I made using battery cells drew so much current through the salt-water "rheostat" that it boiled off...
My "caloric rheostat" is just dialed in a bit high, so I have to accept I need to eat less than I think is correct...
Googling "old sparky" just yields articles about electric chairs, even when including keywords such as "rheostat" and "theatre"
Frequently asked questions
Short answers drawn from the clearest meanings and examples for this word.
How do you use rheostat in a sentence?
A current mirror with a rheostat is probably the simplest, though not generally ideal performance.
What does rheostat mean?
(electronics, technology) An electrical resistor, with two terminals, whose resistance is continuously variable by moving a knob or slider.
What part of speech is rheostat?
rheostat is commonly used as noun.