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A variable resistor is a type of resistor with a variable electrical resistance value. According to Ohm’s Law, variable resistors are used in electronic circuits to modify circuit resistance in order to alter the voltage or current within a circuit.
A wiper contact is moved along a resistance track to change the electrical resistance. The resistance may be set at a predetermined value as needed during circuit construction by an adjusting screw attached to it, or it may be adjustable as needed by a regulating knob connected to it.
The location of the slider contact on the resistance track determines the variable resistor’s active resistance value.A resistance track and a wiper contact make up the majority of it.
The resistance track is moved by the wiper contact as it goes along the adjustable component.This resistor uses primarily three different types of resistance tracks: wire wound track, carbon track, and cermet (ceramic and metal mixture) track.
The Global variable resistor market accounted for $XX Billion in 2021 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2022 to 2030.
L&G’s lgSwitch line RHEOSTAT adjustable resistor is utilised in applications where varying resistance or adjusting current in an electric circuit is necessary.
The rheostat can control the speed of motors, dim lights, and alter the properties of generators. Depending on the application, the resistance component of the device may be a metal wire or ribbon, carbon, or a conducting liquid.
The metallic type is most frequently used for average currents; the carbon type is utilised for extremely small currents; and the electrolytic type, in which electrodes are submerged in a conducting fluid, is best suited for huge currents.
The Potentiometer is a special kind of rheostat that measures an unknown voltage or potential difference by partially or fully balancing it with a known potential difference.
