P232-SFC20BR10K

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Introduction to Rotary Potentiometers, RheostatsA potentiometer is an electrical device that consists of a variable resistor with three terminals. Two of the terminals are connected to a fixed resistance, while the third terminal is connected to a movable wiper. A movable wiper can move along the length of the resistive element, thereby adjusting the resistance between the two terminals.A rheostat is a type of variable resistor which is used to regulate the flow of electrical current in a circuit. The main difference between the two is that a potentiometer has a single non-adjustable resistance, while a rheostat has two adjustable resistors.P232-SFC20BR10K Application FieldThe P232-SFC20BR10K is a rotary-type potentiometer and rheostat. It is a rotary-type coaxial potentiometer and rheostat which can provide a total resistance of 20K Ohms. The rotation of the wiper adjusts the resistance between ground and the wiper contact, thus allowing the user to fine-tune the current flow in a circuit.The P232-SFC20BR10K is commonly used in applications such as current shunt sensors, proportional controls, and arc welding control circuits. It is also used in audio and video equipment, variable speed motors, and motion sensors.P232-SFC20BR10K Working PrincipleThe working principle of the P232-SFC20BR10K is based on the resistance-voltage relationship. This type of potentiometer and rheostat works by utilizing the change in resistance when the wiper contact is adjusted along the length of the resistive element. When a voltage is applied across the two terminals of a potentiometer, an equivalent voltage appears across the wiper contact based on the position of the wiper contact along the resistive element. As the wiper is moved along the resistive element, the equivalent voltage between the two ends of the resistive element also changes.The working principle of a rheostat is similar to that of a potentiometer in that it also utilizes the resistance-voltage relationship. However, in a rheostat, only one adjustable resistor is present, and the voltage applied to the adjustable resistor is changed to adjust the current flowing through the circuit.ConclusionRotary potentiometers and rheostats are highly useful electronic devices that can be used to control the current flow in a circuit. The P232-SFC20BR10K is a rotary-type coaxial potentiometer and rheostat commonly used for current shunt sensing, proportional controls, arc welding, and motion sensing. The working principle of both potentiometers and rheostats is based on the resistance-voltage relationship between the two terminals and the wiper contact.

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