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ELECTRIC AND MAGNETIC CIRCUITS CHAPTER I Electric Circuits and the Electric Current
Power and Work
39 other sections not shown
adjusted alternating current ampere-turns amperes armature current armature reaction armature resistance Article battery brushes Calculate capacity cent circular mils coil commutating poles compound motor condenser conductors connected constant converter copper loss counter e.m.f. curve decrease direct current drop e.m.f. induced effect electric Equation Example feeder field current field flux field resistance flux density frequency full load full-load current Hence horsepower impressed voltage inches increase induced e.m.f. induction motor input insulation kv-a lagging lamps load current machine magnetic circuit magnetic field magnetomotive force maximum mils neutral number of poles ohms operated output phase polyphase positive power factor primary PROBLEMS ON CHAPTER produced rated reactance regulation rheostat rotation rotor secondary series field shown in Fig shunt field shunt motor single-phase speed squirrel-cage starting torque stator supply switch synchronous motor temperature terminal voltage three-phase torque transformer two-phase unity power factor vector volts wattmeter watts wire zero