astatic coils

astatic coils: noun

an arrangement of coils used in sensitive electrical instruments; the coils are arranged to give zero resultant external magnetic field when a current passes through them and to have zero electromotive force induced in them by an external magnetic field

• Hypernyms: ↑coil

• Part Holonyms: ↑astatic galvanometer

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astatic galvanometer — noun has a moving magnet and astatic coils arranged to cancel the effect of the Earth s magnetic field • Hypernyms: ↑galvanometer • Part Meronyms: ↑astatic coils * * * noun : a galvanometer having two needles with opposite polarities that reduce… … Useful english dictionary
Galvanometer — D Arsonval/Weston galvanometer movement with the moving coil shown in red. A galvanometer is a type of ammeter: an instrument for detecting and measuring electric current. It is an analog electromechanical transducer that produces a rotary… … Wikipedia
Citizens' band radio — Typical 1980s CB base station, used with outdoor antenna. This radio may also be used in an automobile, since it is powered by 13.8V DC. Shown with Astatic Power D 104 desk mic … Wikipedia

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