30.4 MB (707.6 KB compressed)
3987 x 2669 pixels
33.8 x 22.6 cm ⏐ 13.3 x 8.9 in (300dpi)
TREVOR CLIFFORD PHOTOGRAPHY / SCIENCE PHOTO LIBRARY TREVOR CLIFFORD PHOTOGRAPHY / SCIENCE PHOTO LIBRARY
Slide wire potentiometer. Potentiometers are a type of variable resistor. This is a linear potentiometer. Moving a sliding key (jockey, not shown) along the device varies the resistance across its contacts (parallel wires). Potentiometers are used in devices such as light dimmers and volume controls.
Model release not required. Property release not required.