Electrical Machines A 220 V DC generator is run at full speed without any excitation. The open circuit voltage will be 220 V. about 50 V. zero. about 2 V. 220 V. about 50 V. zero. about 2 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In induction motor when the length of the air gap is increased, the magnetizing current of the motor increases while the short circuit current __________________. kept constant to certain value. increased. remains unchanged. decreased. kept constant to certain value. increased. remains unchanged. decreased. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a dc machine 4 pole lap winding is used. The number of parallel paths are? 8 4 2 1 8 4 2 1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a practical synchronous motor the pull out torque will occur when the torque angle is nearly equal to 30°. 0°. 75°. 45°. 30°. 0°. 75°. 45°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An inverted V-curve of synchronous motor shows the variation of power factor and dc excitation at constant load All of these power factor and supply voltage during hunting supply voltage and field current at constant excitation power factor and dc excitation at constant load All of these power factor and supply voltage during hunting supply voltage and field current at constant excitation ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motors are suitable for computer printer drive ? Shaded pole motor. Stepper motor. Hysteresis motor. Reluctance motor. Shaded pole motor. Stepper motor. Hysteresis motor. Reluctance motor. ANSWER DOWNLOAD EXAMIANS APP
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