Electrical Machines In dc motors, under leading pole tips flux density will--------? either increase or decrease None of these decrease increase either increase or decrease None of these decrease increase ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutator in DC generator is used for reduce losses collecting of current convert AC armature current in to DC increase efficiency reduce losses collecting of current convert AC armature current in to DC increase efficiency ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A synchronous generator is feeding a zero power factor (lagging) load at rated current. The armature reaction is magnetizing. cross – magnetizing. demagnetizing. ineffective. magnetizing. cross – magnetizing. demagnetizing. ineffective. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of IM the torque is inversely proportional to slip. directly proportional to slip2. inversely proportional to √slip. directly proportional to slip. inversely proportional to slip. directly proportional to slip2. inversely proportional to √slip. directly proportional to slip. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For which of the following loads, armature reaction is magnetizing in nature? pure inductive load pure capacitive load pure resistive load None of these pure inductive load pure capacitive load pure resistive load None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Silicon content in steel lamination is kept within 5% as it Increases cost. makes the material brittle. increases hysteresis loss. All of these Increases cost. makes the material brittle. increases hysteresis loss. All of these ANSWER DOWNLOAD EXAMIANS APP
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