Lynde, Carleton John, b. 1872 · New York, Macmillan · leaf 187
each square centimeter at a distance of one centimeter. If it has a strength of 100, it is repre- sented as sending 100 lines of force through each square centimeter at a distance of i cm., etc. We see, then, that themagnetic lines of force areused to represent the direc-tion and strength of… … FIG. 116. — Making a magnet by meansof an electromagnet. If AB is stroked, in the MAGNETISM AND THE ELECTROMAGNET 173 direction AB only, with a north pole, the end B becomes asouth pole and A a north pole. If a piece of steel is laid on the poles of a strong electro-magnet, Fig. 116, and hammered,…
Physics · Home Economics
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