Lynde, Carleton John, b. 1872 · New York, Macmillan · leaf 228
e passes under and over the needle, the turning force isdoubled; and if the magnetic needle is placed in the center ofa coil of many turns of wire, the turning force is increasedapproximately in proportion to the number of turns of wire inthe coil. Galvanometers of one type, Fig. 150, are madein… … FIG. 150. —A galvanometer with fixed coil andmovable magnet. amount of the deflection is used to determine the strength of the current.The second type of galvanometer, known as the DArsonval galvanometer, consists of a coil of insulated wire wound on a frame, about a piece of soft iron, and…
Physics · Home Economics
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