St. John, Thomas M. (Thomas Matthew), b. 1865 · New York, T. M. St. John · leaf 153
agnet, or magnetic needle, is allowed to move. As soon as the part of the wire, marked A in Fig. 225, gets a little distance from the pole, the opposite side of the wire, B, begins to be attradted by it, the attraction getting stronger and stronger, until it gets opposite the N pole. If the N pole…
Electricity
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