Electricity and magnetism for advanced students (1920)
Starling, Sydney George, 1873- · London Longmans, Green · leaf 243
s r is linked 2Trrn times withthe current. If, then, i be the currentin each turn, the effective currentlinked with the path is 2Trrni, and itfollows from the law given on p. 230,that 27rrH = 47r(27rmi),.-. H = i-n-ni. Fig. 230. It will be noticed that r will vary slightly according to whether the… … IX. MAGNETIC PERMEABILITY 233 uniformity of field is negligible, and if r be infinite, the solenoid is astraight one, and the field inside it is uniform, its value being 47r»i(!.This is in agreement with the result obtained on p. 229. Magnetic Permeability.—There is a close mathematical…
Electricity · Magnetism
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