galvanometer

6 ENTRIES FOUND:

gal·va·nom·e·ter

noun \ˌgal-və-ˈnä-mə-tər\

Definition of GALVANOMETER

:  an instrument for detecting or measuring a small electric current by movements of a magnetic needle or of a coil in a magnetic field
gal·va·no·met·ric \-nō-ˈme-trik\ adjective

First Known Use of GALVANOMETER

1802

gal·va·nom·e·ter

noun \ˌgal-və-ˈnäm-ət-ər\   (Medical Dictionary)

Medical Definition of GALVANOMETER

: an instrument for detecting or measuring a small electric current by movements of a magnetic needle or of a coil in a magnetic field
gal·va·no·met·ric \-nō-ˈme-trik\ adjective

galvanometer

noun    (Concise Encyclopedia)

Instrument for measuring small electric currents by deflection of a moving coil. A common galvanometer consists of a light coil of wire suspended from a metallic ribbon between the poles of a permanent magnet. As current passes through the coil, the magnetic field it produces reacts with the magnetic field of the permanent magnet, producing a torque. The torque causes the coil to rotate, moving an attached needle or mirror. The angle of rotation, which provides a measure of the current flowing in the coil, is measured by the movement of the needle or by the deflection of a beam of light reflected from the mirror.

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