| Giải thích EN: 1. an instrument that measures electromotive force or potential difference by comparing a part of the voltage to be measured against a known electromotive force, then using the law of fall of potential to compute the final measurement.an instrument that measures electromotive force or potential difference by comparing a part of the voltage to be measured against a known electromotive force, then using the law of fall of potential to compute the final measurement.?2. a continually adjusting resistor having a sliding contact, which is typically mounted on a rotating shaft; used primarily as a voltage divider. Also, TRIMMER POTENTIOMETER.a continually adjusting resistor having a sliding contact, which is typically mounted on a rotating shaft; used primarily as a voltage divider. Also, TRIMMER POTENTIOMETER. |