- noun a device for measuring an unknown potential difference or electromotive force without drawing current by comparing it against a known standard
- A variable resistor incorporating a sliding contact or tap, so as to allow a variable proportion of the total resistance to be included in a circuit. It is usually utilized as a potential divider.
- A potentiometer (1) used as a volume control.
- A device or instrument which incorporates one or more calibrated resistors, and which is utilized to measure unknown potential differences when compared with a precisely known potential difference, such as that of a standard cell.
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