Potentiometer. Internal workings of a potentiometer, a type of variable resistor. When placed in a circuit, electricity travels through the coil and o

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Potentiometer. Internal workings of a potentiometer, a type of variable resistor. When placed in a circuit, electricity travels through the coil and out through the metal pointer (centre right). Turning the central dial moves the pointer and varies the resistance to electric current across the contacts at top. Potentiometers are used in such devices as light dimmers and volume controls.

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Size: 4927px × 3578px
Photo credit: © ANDREW LAMBERT PHOTOGRAPHY/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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