potentiometer(redirected from Trim pot)
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1. A three-terminal resistor with a manually adjustable center connection that adjusts the resistance between the end terminals and the center, whose uses include controlling the volume of an amplifier. Also called pot3.
2. An instrument for measuring an unknown voltage by comparison to a standard voltage.
po·ten′ti·o·met′ric (-ə-mĕt′rĭk) adj.
nSometimes shortened to: pot
1. (General Physics) an instrument for determining a potential difference or electromotive force by measuring the fraction of it that balances a standard electromotive force
2. (Electronics) a device with three terminals, two of which are connected to a resistance wire and the third to a brush moving along the wire, so that a variable potential can be tapped off: used in electronic circuits, esp as a volume control
po•ten•ti•om•e•ter(pəˌtɛn ʃiˈɒm ɪ tər)
1. a device for measuring electromotive force or potential difference by comparison with a known voltage.
1. An adjustable resistor used to control the magnitude of the voltage that is applied to an electric circuit. Potentiometers are used in the volume controls of radios and televisions.
2. An instrument for measuring an unknown voltage by comparison with a known voltage, such as that of a generator.
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|Noun||1.||potentiometer - a measuring instrument for measuring direct current electromotive forces|
|2.||potentiometer - a resistor with three terminals, the third being an adjustable center terminal; used to adjust voltages in radios and TV sets|