Electrical Machines In a 3 - φ induction motor running at full load which of these parameters is stationary with respect to the stator mmf wave? Rotor winding. Both rotor and stator winding. Rotor mmf wave. Stator winding. Rotor winding. Both rotor and stator winding. Rotor mmf wave. Stator winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is minimized by laminating the core of a transformer? Eddy current loss. Stray loss. Hysteresis loss. Copper loss. Eddy current loss. Stray loss. Hysteresis loss. Copper loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase slip ring induction motor is wound for 4 poles on stator and 6 poles on the rotor. When 3-phase balanced voltage source at 50 Hz is applied, it will run at 750rpm 1000 rpm zero speed 1500 rpm 750rpm 1000 rpm zero speed 1500 rpm 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 quick acceleration. high efficiency. low starting torque. reduced size. quick acceleration. high efficiency. low starting torque. reduced size. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The polarity of a DC generator can be reversed by increasing field current. reversing field electric current as well as direction of rotation. any of above. reversing the field current. increasing field current. reversing field electric current as well as direction of rotation. any of above. reversing the field current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The principle of dynamically induced emf is utilized in choke. transformer. thermocouple. generator. choke. transformer. thermocouple. generator. ANSWER DOWNLOAD EXAMIANS APP
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