Electrical Machines Armature reaction in DC generators will result in short circuit. increase in slip. open circuit. reduction in generated emf. short circuit. increase in slip. open circuit. reduction in generated emf. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole, 3-phase induction motor is running at 4% slip at full load. If the speed of the motor is 720 rpm, the supply frequency is 50 Hz 40 HZ 25 Hz 60 Hz 50 Hz 40 HZ 25 Hz 60 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The torque developed in IM is nearly proportional to 1 / V2. V2. 1 / V. V. 1 / V2. V2. 1 / V. V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machines shape of net flux density is? flat tapped or trapezoidal sine wave peaky in nature saddle shape flat tapped or trapezoidal sine wave peaky in nature saddle shape ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. What is the slip value? 0.02 0.4 0.2 0.04 0.02 0.4 0.2 0.04 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC motor with armature resistance of 0.5 ohms connected directly to a 220 Volt supply. If the armature is stationary then the current flowing through the armature is 440 A. 250 A. 570 A. 340 A. 440 A. 250 A. 570 A. 340 A. ANSWER DOWNLOAD EXAMIANS APP
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