Small, Sidney Aylmer, 1876- [from old catalog] · Chicago, F. J. Drake & co · leaf 150
end of oneand south end of the other at same end. Strips of ironshould be laid across the ends so as to touch both mag-nets as in Fig. 66. Horse-shoe magnets should have a strip of iron laidacross the ends as in Fig. 68. Question 8. What is a magnetic needle ? MAGNETISM—INTRODUCTION 151 Answer. It… … Fig. 68. A Horseshoe Magnet with its Keeper or Armature A. Question 9. How may you determine whether a baris a magnet or not? Answer. To decide the question whether the bar inour hand is a magnet or not we put it to test in this way. 152 ELEMENTARY ELECTRICITY Remember, however, that should the bar…
Electricity
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