47.5 MB (9.5 MB compressed)
3328 x 4992 pixels
28.2 x 42.2 cm ⏐ 11.1 x 16.6 in (300dpi)
PHIL DEGGINGER / SCIENCE PHOTO LIBRARY PHIL DEGGINGER / SCIENCE PHOTO LIBRARY
Digital multimeter. A multimeter is a combined digital ammeter and voltmeter. From these it can also derive resistance. An ammeter measures the number of amperes (electric current) in a circuit. A voltmeter measures voltage (electrical force) in a circuit. The multimeter has its own power source.
Model release not required. Property release not required.