Lessons in practical electricity; principles, experiments, and arithmetical problems; over four hundred illustrations; an elementary text book (1909)
Swoope, C. Walton (Coates Walton), d. 1901 · New York, D. Van Nostrand company · leaf 309
field of the cur-rents in the two coils,and the retarding angularforce also proportional tothe magnetic field set up,the armature must rotateat such a speed that theelectromagnetic drivingtorque is exactly equalto the electromagneticretarding torque. Then with a constant pressure maintainedin the… … Tl homson Recording Wattmeter. ELECTRODYNA .1/70? 291
Electricity · Magnetism
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
