## Electricity: Principles, Practice, Experiments |

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adjusted alternating current alternating-current ammeter ampere turns armature armature current autotransformer battery brushes calculate capacitance capacitor cent coil coil of wire commutator compound motor conductors connected in series copper current flow curve cycle deflection determine developed direct current direct-current motor dry cell E-type electric circuit electrical energy electromagnet electromagnetic induction electrons equal Example exciting coil field current field resistance field rheostat flux density full-load heating impressed voltage increase induced voltage induction motor insulating laminated lamps lines of force load machine magnetic field maximum measure meter Note particularly number of ampere number of turns ohms operation polarity pole faces power factor primary principle reactance resistors reversing switch rheostat rotor sd MP series field series motor series-field shaded-pole motor shown in Fig shows shunt field shunt motor speed split-phase motor starter terminal tion torque transformer turns of wire voltage drops voltmeter volts watts zero