Electrical Machines In dc machines, the armature windings are placed on the rotor because of the necessity for generation of voltage commutation electromechanical energy conversion development of torque generation of voltage commutation electromechanical energy conversion development of torque ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor has which of the following characteristics? Can be started easily without load. Has its field winding consinting of thick wire and less no of turns. Has a almost constant speed. Has a poor torque. Can be started easily without load. Has its field winding consinting of thick wire and less no of turns. Has a almost constant speed. Has a poor torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Thin laminations are used in a machine in order to reduce Eddy current losses Copper losses Both 1 and 2 Hysteresis losses Eddy current losses Copper losses Both 1 and 2 Hysteresis losses ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous generator, if mechanical input is increased with constant excitation, the load angle will None of these either increase or decrease decrease increase None of these either increase or decrease decrease increase ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A lap wound DC machine has 400 conductors and 8 poles. The voltage induced per conductor is 2 volts. The machine generates a voltage of 400 V. 200 V. 100 V. 800 V. 400 V. 200 V. 100 V. 800 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 220 V dc machine has an armature resistance of 1Ω.If the full-load current is 20 A, the differenc in the induced voltages when the machine is running as a motor and as a generator is 40 V 50 V 20 V zero 40 V 50 V 20 V zero ANSWER DOWNLOAD EXAMIANS APP
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