Principles and practice of electrical engineering (1914)
Gray, Alexander, 1882-1921 · New York [etc.] McGraw-Hill Book Company, inc. · leaf 64
OIDS AND ELECTROMAGNETS 39 circuit is large since the path of the lines of flux is nearly allthrough air, so that the magnetic field and the plunger poles areboth weak. As the plunger moves toward F, the reluctance ofthe magnetic circuit decreases because the amount of iron in themagnetic path is…
Electrical engineering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
