Electrical Machines A DC motor with armature resistance of 0.5 ohms is connected directly to a 230 Volt supply. If the armature is stationary then the current flowing through armature is 460 A. 340 A. 570 A. 250 A. 460 A. 340 A. 570 A. 250 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer operating at constant voltage if the input frequency increases, the core loss None of these decrease. remains constant. increase. None of these decrease. remains constant. increase. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To get the speed of DC motor more than normal without wastage of electrical energy _____________ is used. any of above method. Ward Leonard control. none of above. rheostatic control. any of above method. Ward Leonard control. none of above. rheostatic control. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Poles of DC machine are often laminated to dissipate more heat. reduce pulsation loss. reduce armature reaction. reduce iron weight. dissipate more heat. reduce pulsation loss. reduce armature reaction. reduce iron weight. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In alternator, the rotary part is armature. none of these. magnetic field poles. core. armature. none of these. magnetic field poles. core. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, the electricity produced in armature is AC. None of these DC. armature is not present in DC generator. AC. None of these DC. armature is not present in DC generator. ANSWER DOWNLOAD EXAMIANS APP
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