search
arrow-left Previous
Next arrow-right
Q: Potentiometer basically –
  • A. Is a measuring instrument
  • B. Is a connective device
  • C. Is a calibration equipment
  • D. Is a notation tool
Correct Answer: Option A - Potentiometer is a measuring instrument used for measuring an electromotive force by balancing it against the potential difference produced by passing a known current through a known variable resistance. Potentiometers are commonly used to control electrical devices such as volume controls on audio equipment.
A. Potentiometer is a measuring instrument used for measuring an electromotive force by balancing it against the potential difference produced by passing a known current through a known variable resistance. Potentiometers are commonly used to control electrical devices such as volume controls on audio equipment.

Explanations:

Potentiometer is a measuring instrument used for measuring an electromotive force by balancing it against the potential difference produced by passing a known current through a known variable resistance. Potentiometers are commonly used to control electrical devices such as volume controls on audio equipment.