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Elementary electricity up-to-date; (1909)

Small, Sidney Aylmer, 1876- [from old catalog] · Chicago, F. J. Drake & co · leaf 157

An illustration from Elementary electricity up-to-date;, 1909, leaf 157
3600 of the circle aremarked out. Fig. 71. 155 ELEMENTARY ELECTRICITY Question 26. Why do home made compasses balancebadly? One end seems too heavy. Answer. Xear the equator of the earth a needle maybe balanced and then magnetized, but in other placesif the needle is balanced and then magnetized… … Fig. 73. Showing Dip or Inclination of Needle at Magnetic north pole,Magnetic equator, Magnetic south pole. Question 27. Is this Inclination of the needle thesame all over the world? Answer. Xo. In Fig. 73 is shown the Dip or Inclina-tion of the needle at the magnetic north pole, magneticequator…

Electricity

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