Gerard, Eric Mary, 1856-1916 · New York W.J. Johnston · leaf 390
magnetization bythe formula / = 27rOV (§ 56) If the magnet be under the influence of a magnetic field,we must add a second term, 3C3.y, and then we have p — 2TiSs -f-oca.? (i) Now 0 = >c3C, (§52) (2) and /^ = I + \nK (3) Combining (i), (2), and (3), we obtain Now for a very long solenoid… … Fig. 108.construction of a commercial apparatus for measuring per-meabilities. The bar to be tested is divided into two parts,M, F, placed in the middle of a long coil completely enclosed MEASUREMEAT OF COEFFICIENTS OF INDUCTION. 2,7S in an iron sheath. The part M is hung from one of the endsof a…
Electricity · Magnetism
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