Electrical Machines An induction motor has synchronous speed of 1500 rpm. What will be the slip when it is running at a speed of 1450 rpm? +3.33% +3% -3.33% -3% +3.33% +3% -3.33% -3% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Induction motor operation depends on None of these stationary magnetic field. rotating magnetic field. either of these. None of these stationary magnetic field. rotating magnetic field. either of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a resistance split phase motor, what is the range of torque angle? 0° 25° to 30° 90° 70° to 85° 0° 25° to 30° 90° 70° to 85° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the field system has to be provided on stator unlike synchronous machines Where in it could be on any member, because it reduces field structure iron losses commutator action is not possible otherwise dc machines are comparatively low rating machines. it gives more uniform air-gap flux distribution it reduces field structure iron losses commutator action is not possible otherwise dc machines are comparatively low rating machines. it gives more uniform air-gap flux distribution ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On what factors the speed of dc motor depends? Field flux. Armature current Ia. All of these. Applied voltage. Field flux. Armature current Ia. All of these. Applied voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines It is an advisable to use auto transformer if the transformation ratio is 0.25. near to 1. 0.5. Greater than 1. 0.25. near to 1. 0.5. Greater than 1. ANSWER DOWNLOAD EXAMIANS APP
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