Electrical Machines When flux density is constant in a transformer, hysteresis loss varies as V f V² f² V f V² f² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To get the speed of DC motor is more than normal without wastage of electrical energy _____________ is used. None of above. Ward Leonard control. Any of above method. Rheostatic control. None of above. Ward Leonard control. Any of above method. Rheostatic control. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Rotating magnetic field is produced in an induction motor because of rotor winding. stator winding. either stator winding or rotor winding. None of these rotor winding. stator winding. either stator winding or rotor winding. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following DC Motor uses 4-point starter? DC shunt motor with field weaking control. DC compound motor. DC shunt motor with armature resistance. DC series motor. DC shunt motor with field weaking control. DC compound motor. DC shunt motor with armature resistance. DC series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor having 8 poles runs at 727.5 rpm. If the supply frequency is 50Hz, the emf in the rotor will have a frequency of 48.5Hz 1.5Hz 2.5Hz 51.5Hz 48.5Hz 1.5Hz 2.5Hz 51.5Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole DC shunt generator having a wave winding supplies 50 lamps, each of 60 W at 120 V. The armature and field resistance are 0.2 Ω and 60 Ω respectively. The current in each armature conductor is 23 A. 13.5 A. 27 A. 11.5 A. 23 A. 13.5 A. 27 A. 11.5 A. ANSWER DOWNLOAD EXAMIANS APP
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