ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY
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.
Model release not required. Property release not required.