Electrical Machines If the applied voltage to a dc machine is 230 V, then the back emf, for maximum power developed, is 230 V 200 V 460 V 115 V 230 V 200 V 460 V 115 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature resistance of the dc motor is generally of the range 100 ohm. 0.1 ohm. 50 ohm. 0.5 ohm. 100 ohm. 0.1 ohm. 50 ohm. 0.5 ohm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, which component plays the vital role to produce the direct current? Armature. Brush. Yoke. Commutator. Armature. Brush. Yoke. Commutator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following statements is/are correct statements? All of these EMF per turn in HV winding is more than EMF per turn in LV winding EMF per turn in both the windings are equal EMF per turn in HV winding is less than EMF per turn in LV winding All of these EMF per turn in HV winding is more than EMF per turn in LV winding EMF per turn in both the windings are equal EMF per turn in HV winding is less than EMF per turn in LV winding ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC machine is a convection machine. conduction machine. none of above are correct. both are correct. convection machine. conduction machine. none of above are correct. both are correct. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the number of rotor slots is equal to number of stator slots, then motor refuses to start. Hence it is known as cogging. relative speed. air gap. crawling. cogging. relative speed. air gap. crawling. ANSWER DOWNLOAD EXAMIANS APP
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