An experimental study of the fahy permeameter (1918)
National Bureau of Standards · leaf 30
3tiv I V5 £> T Ha.Btjeaftr \AtMir D T rriL c nRRHRfinnn .SflC … Fig. 15.—Complete electrical connections of the Fahy permeameter A sanfTd] Fahy Permeameter 293 circuits, respectively. Switch SM^ when thrown upward inserts the variable resist-ance R^M in series with the resistance RM. Switch SC when thrown upwardinserts the variable resistance R^ C^^^. in series…
Magnetism · measurements and use of instruments/ B8000 Power systems and applications
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