Lessons in practical electricity; principles, experiments, and arithmetical problems; over four hundred illustrations; an elementary text book (1909)
Swoope, C. Walton (Coates Walton), d. 1901 · New York, D. Van Nostrand company · leaf 176
itself the greatest numberof magnetic lines of the circular field, and also to such a posi-tion that its own natural magnetic lines will be in the samedirection as the currents lines of force. Considering Fig. 134, the current flowrs over the needle fromright to left (also N to S). As you look… … E F C Fig. 135.—Resultant Deflections of the Magnetic Needle When Placed Neaito a Current-Carrying Wire. of the needle, N„ moves to the position, Nf, at right angles tothe wire, and in the direction of the field underneath the wire(which is from S2 to N2), so that the direction of the whirlsand the…
Electricity · Magnetism
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