Small, Sidney Aylmer, 1876- [from old catalog] · Chicago, F. J. Drake & co · leaf 181
thecore, the pole is an N-pole. Question 12. Is there any other rule? Answer. Yes. It is a rule especially applicable towinding horse shoe magnets so that both legs of the 182 ELEMENTARY ELECTRICITY magnet will not be accidentally made of the same po-larity. Write on the pole piece the letter S or… … Fig. 96. Rule for Proper Winding of Horse-shoe Magnets. Question 13. What is the strength of a magnet? Answer. The term the strength of a magnetis used very carelessly. Some people mean its liftingpower, while engineers and electricians mean the actualquantity of magnetism flowing from a pole…
Electricity
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