Cumming, Linnæus, b. 1843. [from old catalog] · New York, D. Van Nostrand · leaf 64
orizontal component and the dip, the total intensityis at once known (Fig. 36) by the law of the parallelogramof forces. The objections to this method will be obvious from whatwe have stated as to the impossibility of preserving anymagnet from change in its magnetic power, or even of ascer-taining… … *32. Gausss Method for Finding Intensity.—Let us first consider the forces tending to bring back again a horizon- 46 Electricity. [Book I. tally suspended magnetic needle displaced from the meridian.Using absolute units, assume m to be the magnetic strength ofeach pole of the magnet, and H the…
Electricity
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