Electrical Machines A 4 pole dc generator is running at 1500 rpm the frequency of current in the armature winding is 150Hz. 100Hz. 200Hz. 50Hz. 150Hz. 100Hz. 200Hz. 50Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole DC generator rotates at 1500 rpm. How many times in a second, will the emf induced in each armature conductor changes its direction? 100. 750. 500. 200. 100. 750. 500. 200. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the frequency of rotor current of 50 Hz induction motor operating at 4% slip? 2HZ 50Hz 2.5Hz 1 Hz 2HZ 50Hz 2.5Hz 1 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine, which of these parameters remain the same whether it runs as a DC motor or a DC generator? Induced emf. Armature current. Can not be determined. Mechanical power. Induced emf. Armature current. Can not be determined. Mechanical power. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following DC motors has almost constant speed over their full load range? Series. Shunt. Compound (cummolative). none of these. Series. Shunt. Compound (cummolative). none of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In induction motor wound rotor motor is mainly is used in application where high starting torque. power factor is less. low starting torque. less costly motor is not required. high starting torque. power factor is less. low starting torque. less costly motor is not required. ANSWER DOWNLOAD EXAMIANS APP
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