Electrical Machines The power factor of squirrel cage induction motor is both A and B low at rated load only low at heavy loads only low at light loads only both A and B low at rated load only low at heavy loads only low at light loads only ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When flux density is constant in a transformer, hysteresis loss varies as f² f V V² f² f V V² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Silicon content in steel lamination is kept within 5% as it makes the material brittle. increases hysteresis loss. Increases cost. All of these makes the material brittle. increases hysteresis loss. Increases cost. All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The magnetic field which initially induces emf in the armature in a self excited DC generator is because of permanent magnets. None of these armature reaction. residual magnetism. permanent magnets. None of these armature reaction. residual magnetism. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC generator without commutator is a induction motor DC generator AC generator DC motor induction motor DC generator AC generator DC motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If Pi and Pc represent core and full load copper loss respectively, the maximum KVA delivered to load corresponding to maximum efficiency is equal to rated KVA is Pi/Pc √(Pi/Pc) (Pi/Pc)2 Pc/Pi Pi/Pc √(Pi/Pc) (Pi/Pc)2 Pc/Pi ANSWER DOWNLOAD EXAMIANS APP
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