Electrical Machines Hunting phenomenon is observed in which motor? Both A and C. Induction motor. DC motor. Synchronous motor. Both A and C. Induction motor. DC motor. Synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 230 V dc series generator is driven at its rated speed. The no-load voltage across its armature terminals would be somewhat less than 230 V 230 V 6 V somewhat more than 230 V somewhat less than 230 V 230 V 6 V somewhat more than 230 V 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%. 59.2%. 57.1%. 88.8%. 48.0%. 59.2%. 57.1%. 88.8%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC generator beyond critical resistance will generate maximum voltage. no voltage. maximum current. maximum power. maximum voltage. no voltage. maximum current. maximum power. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Open circuit in a transformer is prefered with rated transformer current rated transformer voltage high frequency supply direct current rated transformer current rated transformer voltage high frequency supply direct current ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Satisfactory commutation of DC machine requires smooth, concentric commutator properly undercut. brushes should smoothly run in the holders. All of these brushes should be of proper grade and size. smooth, concentric commutator properly undercut. brushes should smoothly run in the holders. All of these brushes should be of proper grade and size. ANSWER DOWNLOAD EXAMIANS APP
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