Electrical Machines Which of the following motors are suitable for computer printer drive ? Reluctance motor. Shaded pole motor. Stepper motor. Hysteresis motor. Reluctance motor. Shaded pole motor. Stepper motor. Hysteresis motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature resistance of a permanent magnet dc motor is 0.8 Ohm. At no load, the motor draws 1.5 A from a supply voltage of 25 V and runs at 1500 rpm. The efficiency of the motor while it is operating on load at 1500 rpm drawing a current of 3.5 A from the same source will be 48.0%. 88.8%. 57.1%. 59.2%. 48.0%. 88.8%. 57.1%. 59.2%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If peak value of phase mmf is F max , then peak value of the rotating field caused by three phase is (1/2)Fmax. 3Fmax. Fmax. (3/2)Fmax. (1/2)Fmax. 3Fmax. Fmax. (3/2)Fmax. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a single phase induction motor driving a fan load, the reason for having a high resistance rotor is to achieve low starting torque. reduced size. quick acceleration. high efficiency. low starting torque. reduced size. quick acceleration. high efficiency. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In normal dc machines operating at full-load conditions, the most powerful electromagnet is interpole winding armature winding field winding interpole and compensating windings together interpole winding armature winding field winding interpole and compensating windings together ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Cross magnetization effects which of the following? reduces the terminal voltage reduction in main field flux both 2 and 3 commutation reduces the terminal voltage reduction in main field flux both 2 and 3 commutation ANSWER DOWNLOAD EXAMIANS APP
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