Electrical Machines In DC machines, the interpoles are provided to counteract demagnetizing effect of armature mmf in commutating zone. to counteract the reactance voltage and the cross-magnetizi to make commutation spark less. both (B) and (C). to counteract demagnetizing effect of armature mmf in commutating zone. to counteract the reactance voltage and the cross-magnetizi to make commutation spark less. both (B) and (C). ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of bearing is provided in small induction motors to support the rotor shaft? None of these Bush bearings. Cast iron bearings. Ball bearings. None of these Bush bearings. Cast iron bearings. Ball bearings. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of following components of a DC generator plays vital role for providing direct electric current of a DC generator? Dummy coils. Commutator. Equalizer rings. Eye bolt. Dummy coils. Commutator. Equalizer rings. Eye bolt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of DC Shunt Motor electromagnetic torque developed is Inversely proportional to the armature current. Proportional to the armature current. None of above. Proportional to the square of armature current. Inversely proportional to the armature current. Proportional to the armature current. None of above. Proportional to the square of armature current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 10 kW, 230 V, dc shunt machine has four terminals brought out through four leads. For this machine both the windings have thin leads both the windings have thick leads armature winding has thick leads whereas field winding has thin leads armature winding has thin leads whereas field winding has thick leads both the windings have thin leads both the windings have thick leads armature winding has thick leads whereas field winding has thin leads armature winding has thin leads whereas field winding has thick leads ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A commutator in dc machine provide ----------------- rectification? half wave controlled half wave full wave controlled full wave half wave controlled half wave full wave controlled full wave ANSWER DOWNLOAD EXAMIANS APP
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