A Hand-Book of the Electromagnetic Telegraph (Classic Reprint)

Excerpt from A Hand-Book of the Electromagnetic Telegraph

Electricity - Positive and Negative Conductors and non-conductors Galvanic Batteries Galvanic Circuits Electrical Quantity and Intensity Resistance electro-motive Force Haskins's Galvanometer and its Uses Ohms Law Measurement of Currents. Measurement of Resistance Speed Of the Current Divided Circuits electro-magnets Residual Magnetism Proportion of electro-magnets to Circuit. Intensity and Quantity Magnets.

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