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 | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Andrew Lambert Photography |
Taille de l’image : | 4927 px × 3578 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |