An Introduction to the Study of Electrical Engineering

a. c. motors air gap alternating current ammeter ampere-turns amperes apparatus applied arc lamps armature boilers brushes C. G. S. unit candle power capacity carbon cent commutator conductivity conductors constant current constant potential Construction copper core curve devices Diagram dielectric direct current disk efficiency electric circuit electrolytic electromotive force energy Engineering excitation filament flow heat incandescent lamp increase indicate induction motor instrument insulation iron light load located machine magnetic circuit magnetic field magnetomotive force material maximum mechanical metal morocco number of turns ohms operation output phase poles polyphase power factor power station practically pressure primary principle produced proportional purposes quantity railway rated-load reactance regulation relay resistance revolving rotating secondary shown in Fig shunt slots speed square steam steel storage battery strength switch synchronous temperature terminals three-phase tion torque transformer transmission transmitted tube velocity voltage voltmeters volts watts wave winding wire