The function of potentiometer is: 1. Used as voltage divider The potentiometer is a continuously adjustable resistor. When the rotating handle or sliding handle of the potentiometer is adjusted, the moving contact slides on the resistor body. At this time, the output voltage that 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. Used as rheostat When the potentiometer is used as a rheostat, it should be connected into devices at both ends, so that a smooth and continuously changing resistance value can be obtained within the stroke range of the flower potentiometer. 3. Used as current controller When the potentiometer is used as a current controller, one of the selected current output terminals must be the lead out terminal of the sliding contact. Specification:                                                                                       

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