Electrical equipment. Digital ammeter (left,yellow),digital voltmeter (right,yellow) and an oscilloscope. An ammeter measures the number of amperes (electric current) in a circuit. A voltmeter measures voltage (electrical force) in a circuit. An oscilloscope uses a cathode ray tube to graphically exhibit variations in voltage or current | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Andrew Lambert Photography |
Taille de l’image : | 4912 px × 3592 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |