A text-book on chemistry. For the use of schools and colleges (1866)
Draper, Henry, 1837-1882 · New York, Harper & brothers · leaf 192
MAGNETO-ELECTKIC CURKENTS. 179 … The current runs round the coil in the direction of thearrows, and the ar- Fig. 153. rangement, obeyingthe magnetic influ-ence of the earth,turns with its planepointing north andsouth, just as a mag-netic needle would -^do. If the northend of a magnet,n s, be presented to-ward the loop,thewire will…
Chemistry · Physics
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