Question

Define potentiometer

Answer 1

A potentiometer is a three-terminalresistor with a sliding or rotating contact that forms an adjustable voltage divider.[1] If only two terminals are used, one end and the wiper, it acts as a variable resistor or rheostat.USED FOR MEASURING VOLTAGE

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Answer 2

an instrument for measuring an electromotive force by balancing it against the potential difference produced by passing a known current through a known variable resistance