Electricity experimentally and practically applied; a book for the beginner and for the practical man, principles, experiments, practical applications and problems (1910)
Ashe, Sydney Whitmore · New York, D. Van Nostrand company · leaf 27
be found that the strengthof the magnet appears to be greater than if the same pieceof steel had been magnetized in the shape of a bar. Thisis due to the fact that the magnetic emanations which issuefrom the north pole cover an air gap, as indicated by thecurved lines in Fig. i, and enter the south… … Fig. 7. — Horseshoe Magnet from Weston Voltmeter. 6 EXPERIMENTAL ELECTRICITY and south poles close together as in a horseshoe magnet,the air gap, or path of the magnetic circuit, is considerablyreduced, increasing the apparent strength of the magnet.Figure 7 illustrates an excellent and powerful…
Electricity · Electrical engineering
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