50K linear potentiometer action:            

The main functions of potentiometers in circuits are as follows:            

1.50K Linear Potentiometer Used as Voltage Divider            

The potentiometer is a continuously adjustable resistor. When the rotator or sliding handle of the potentiometer is adjusted, the moving contact slides on the resistor. At this time, the output voltage of the potentiometer, which is related to the applied voltage of the potentiometer and the angle or stroke of the movable arm, can be obtained at the output end of the potentiometer.            

2.50K Linear Potentiometer Used as Rheostat            

When the potentiometer is used as a rheostat, it should be connected to two end devices, so that a smooth and continuous change of resistance can be obtained within the range of the trip of the flower potentiometer.            

3.50K Linear Potentiometer Used as Current Controller            

When the potentiometer is used as a current controller, one of the selected current output terminals must be the sliding contact lead-out.