Practical electricity, with questions and answers (1901)
Cleveland armature works, [from old catalog] comp, Lincoln, John C. [from old catalog] · [Cleveland, Ohio, Cleveland armature works] · leaf 98
s per square inch.Allowing 100,000 lines per square in. in the rest of the mag-netic circuit and 140,000 at the joint between the armatureand field, what will be the lifting power of a magnet 9inches in diameter? 85 First, assume the magnetizing coil to be one inch wide b3 two inches deep. (Fig*.… … Figure 37Pull of iron clad magnet. The sizes indicated do this very nearly; the area ofeach part is equal to the area of a circle 5^4 inches in diam-eter. Table No. 13 gives this as 21.65 square inches. At100,000 lines per square inch there would be 2,165,000 linesin the magnet. If the surface is…
Electricity · Electric generators
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