Allen, Charles Ricketson, 1862- [from old catalog] · New York, H. Holt and company · leaf 32
20 CURRENT ELECTRICITY. effect on the compass as was produced by the wires ?lustrate by a sketch in your note-book. EXERCISE 2. CONDITIONS FOR PRODUCING CURRENT. Preliminary.—When, on bringing a wire near a compass-needle, or any magnet free to deflect, a phenomenon likethat in the preceding…
Physics
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