Electroscope and electrometer

Electroscope and electrometer

H305/0007 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 53.5MB

Downloadable file size: 976.8KB

Price image Pricing

Please login to use the price calculator


Credit: SCIENCE PHOTO LIBRARY

Caption: Diagrams of an electroscope (left) & an electrom- eter (right) - instruments used in early studies of radioactivity & subatomic particles. The elect- oscope is a box with a window. A metal rod passes through an insulating collar & has two thin sheets of gold foil attached to its end. When the rod is electrically charged, the gold leaves repel each other. If the air in the box is ionised, for instance by radiation, the charge on the leaves is neautralised & the leaves collapse together. The electrometer allows the amount of electricity to be accurately measured. Quartz fibres held under tension repel each other when charged; the degree of separation is measured with the microscope.

Release details: Model release not required. Property release not required.

Keywords: device, diagram of, electrometer, electroscope, equipment, instrument, science, scientific

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.