Potentiometers are used as a
- variable voltage source.
- variable resistor.
- variable current source.
Explanation
A potentiometer is fundamentally a variable resistor: a resistive track with a sliding wiper that changes the resistance in the circuit. When the wiper output is taken relative to both ends it acts as a voltage divider, but the device itself is a variable resistor rather than an active current or voltage source.
Hana asking:
Isn't it potentiometer relates to variable voltage source?
Community Comments (1)
D
dimky Posts: 514 10.01.2013 / 15:37
First of all, potentiometer is a variable resistor. But it can be used as voltage divider to change voltage.
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