Brechner, Claude H., 1887- [from old catalog] · Boston, New York [etc.] Allyn and Bacon · leaf 162
HOW TO MAGNETIZE A PIECE OF IRON 151 which is magnetized, the molecules are all in order; so thatall the S-poles point to one end, and all the N-poles to theother. (Figure 134.) In this case the effect of each molecule helps the effect ofevery other, and one end of the bar becomes a N-pole andthe… … hiGURE 140.— Field about aHorseshoe Magnet Having aBar of Soft Iron in Frontof Poles. 182. How to Magnet-ize a Piece of Iron. — To magnetize a piece ofiron, place it in a mag-netic field so that thelines of force run throughthe iron. This lines the molecules up as in Figure 136, magnetizing the…
Physics
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