A potentiometer is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider. If only two terminals are used, one end and the wiper, it acts as a variable resistor or rheostat.Potentiometers are commonly used to control electrical devices such as volume controls on audio equipment.

a small potentiometer used to make small adjustments to the value of resistance or voltage in an electronic circuit.This is called trimpot or preset.


In this video,we have shown how to connect a trimpot in circuits .

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