Electrical Machines A voltmeter gives 120 oscillations per minute when connected to the rotor of an induction motor. The frequency is 50Hz. The slip of the motor is 5% 25% 2% 4% 5% 25% 2% 4% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc shunt motor runs at a no-load speed of 1140 rpm. At full load, armature reaction weakens the main flux by 5% whereas the armature circuit voltage drops by 10%. The motor full-load speed in rpm is 1200 1203 1080 1000 1200 1203 1080 1000 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When flux density is constant in a transformer, hysteresis loss varies as f² V² f V f² V² f V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Find the reactance voltage when current is changed from -2A to 2A in 4 sec and self inductance is 1H? 2 V 4 V 1 V 0 V 2 V 4 V 1 V 0 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Direct axis reactance is defined as the ratio of Vmax to Imin Vmin to Imin Vmin to Imax Vmax to Imax Vmax to Imin Vmin to Imin Vmin to Imax Vmax to Imax ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Inter pole winding is connected in-------------------------- ? series with main poles parallel with armature series with armature parallel with main poles series with main poles parallel with armature series with armature parallel with main poles ANSWER DOWNLOAD EXAMIANS APP
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