71.3 MB (6.4 MB compressed)
8200 x 3039 pixels
69.3 x 25.7 cm ⏐ 27.3 x 10.1 in (300dpi)
TURTLE ROCK SCIENTIFIC / SCIENCE SOURCE / SCIENCE PHOTO LIBRARY TURTLE ROCK SCIENTIFIC / SCIENCE SOURCE / SCIENCE PHOTO LIBRARY
Electromagnet demonstration. A simple electromagnet is constructed by coiling a length of a wire around a steel screwdriver. When electric current is passed through the wire, magnetic field is produced, attracting steel paper clips.
Model release not required. Property release not required.