Henderson, C. Hanford (Charles Hanford), 1861-1941, Woodhull, John F. (John Francis), 1857-1941 · New York, D. Appleton and company · leaf 278
Line ., <T … aEarth Connection Earth Connection Fig. 164.— The telegraph. Suppose the electric current to flow from the batterythrough the apparatus at station X, and through the line wireconnecting this with station Y, and through the apparatusat Y and back from a! to a through the earth. The electro-magnets c…
Physics
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