Electrical Machines The output voltage of a DC generator is E = V + IaRa. E = V + Ra. E = V + Ia. E = V – IaRa. E = V + IaRa. E = V + Ra. E = V + Ia. E = V – IaRa. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field connection of a DC Shunt Motor is changed then it will run in opposite direction. motor will not run. it will run in same direction. it will run in same direction by slowly. it will run in opposite direction. motor will not run. it will run in same direction. it will run in same direction by slowly. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For high current and low current rating which winding is employed to DC machine? Both lap and wave winding Lap winding None of above Wave winding Both lap and wave winding Lap winding None of above Wave winding ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The dc motor which can provide zero speed regulation at full load without any controller, is series. cumulative compound. differential compound. shunt. series. cumulative compound. differential compound. shunt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A motor operates in stable region at which of the following slip? high slip region both 1 and 2 unity slip low slip region high slip region both 1 and 2 unity slip low slip region ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Current in a coil undergoing commutation is not able to get reversed completely by the end of commutation period. It is due to reactance voltage induced in the coil. coil resistance. None of these armature emf. reactance voltage induced in the coil. coil resistance. None of these armature emf. ANSWER DOWNLOAD EXAMIANS APP
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