Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1902)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 178
Fig. 135.) If two unequal cur-rents flow, one above and the other below the needle, theneedle obeys the directive force of the stronger current. Exp. 51: A simple form of apparatus forstudying the relation between a needlesdeflection and the direction of current,called an Oersted stand, is shown in… … Fig. 137.—Oersted Standfor Studying the Nee-dles Deflectionsby a Current. 169. Right-Hand Rule for Direc-tion of Whirls.—If the DirectionOF Current in any Circuit is Known,THE Direction of the Circular Magnetic Field Around theWire May be Found as Follows: Place the palm of the outstretched right…
Electricity · Magnetism
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