Astatic galvanometer



a galvanometer that is unaffected by the earth’s magnetic field and is used for measuring small currents.
Historical Examples

Fig. 67 shows an astatic galvanometer for measuring weak currents.
Things a Boy Should Know About Electricity Thomas M. (Thomas Matthew) St. John

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  • Astatically

    unstable; unsteady. Physics. having no tendency to take a definite position or direction. adjective not static; unstable (physics) having no tendency to assume any particular position or orientation (of a galvanometer) having two mutually compensating magnets arranged so that the instrument is independent of the earth’s magnetic field adj. 1827, from Greek astatos “unstable, not […]

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    noun (chem) a binary compound of astatine with a more electropositive element



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