Electrical Machines What is the frequency of rotor current of 50 Hz induction motor operating at 4% slip? 2HZ 2.5Hz 50Hz 1 Hz 2HZ 2.5Hz 50Hz 1 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine torque depends on which of the following? flux (φ) both A and B armature current (I) speed flux (φ) both A and B armature current (I) speed ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A belt-driven cumulatively-compound dc generator is delivering power to the dc mains. If the Belt snaps then the machine will run as a differentially compounded motor in the same direction cumulative compounded motor in the same direction cumulative compounded motor in opposite direction differentially compounded motor in the opposite direction differentially compounded motor in the same direction cumulative compounded motor in the same direction cumulative compounded motor in opposite direction differentially compounded motor in the opposite direction ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two transformers with identical rating, are designed with flux densities of 1.2 and 1.4 Wb / m2 respectively. The weight of first transformer per kVA is none of these. more than that of second transformer. less than that of second transformer. equal to that of second transformer. none of these. more than that of second transformer. less than that of second transformer. equal to that of second transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a dc machine, the demagnetizing effect of armature reaction is due to component of armature mmf along field axis magnetic saturation in half of the field pole non-sinusoidal nature of armature mmf uneven air-gap length component of armature mmf along field axis magnetic saturation in half of the field pole non-sinusoidal nature of armature mmf uneven air-gap length ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the space waveform of the air-gap flux distribution affects neither the voltage nor the torque both the torque and voltage torque but not the voltage voltage but not the torque neither the voltage nor the torque both the torque and voltage torque but not the voltage voltage but not the torque ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS