February 4, 2014

FCC Technician Exam Question Of The Day (T6A03)

Q) What electrical parameter is controlled by a potentiometer?

A) Resistance

NJ2X Notes:
The potentiometer is a variable resistor.  There are many different varieties.

  • Linear taper potentiometer
  • Logarithmic potentiometer
  • "Fader"
  • "Trimpot" or "Trimmer"
  • "String"
  • PCB mount
  • Cabinet mount