Electrical Machines To eliminate 5th harmonic in the induced voltage phase breadth should be 72° 30° 36° 18° 72° 30° 36° 18° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC 4 pole lap wound generator is running at 1000 rpm having 1200 conductors and flux density is 10 mwb. find the generated emf? 20V 10V 200V 100V 20V 10V 200V 100V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The volt-ampere euation for a long-shunt compound motor is given by Vt = Ea + Ia(ra + rs) Vt= Ea + Iara Vt = Ea + Iara+ ILrs Vt= Ea– Iara Vt = Ea + Ia(ra + rs) Vt= Ea + Iara Vt = Ea + Iara+ ILrs Vt= Ea– Iara ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is power factor of a 3 - φ induction motor at no load? Equal to 1. High. Same as full load. Low. Equal to 1. High. Same as full load. Low. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature of a DC motor is laminated to reduce hysteresis loss. eddy current loss. friction and windage loss. copper loss. hysteresis loss. eddy current loss. friction and windage loss. copper loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines High inrush of current during a starting of DC motor can efficiently be restricted to a safer value by increasing the _________________ resistance. shunt field both A and B armature circuit none of above shunt field both A and B armature circuit none of above ANSWER DOWNLOAD EXAMIANS APP
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