Electrical Machines Which of following DC generator will be in a position to build up without any residual magnetism in the field? Shunt. Compound. Separately excited. Series. Shunt. Compound. Separately excited. Series. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machines, the interpoles are provided to counteract demagnetizing effect of armature mmf in commutating zone. to make commutation spark less. both (B) and (C). to counteract the reactance voltage and the cross-magnetizi to counteract demagnetizing effect of armature mmf in commutating zone. to make commutation spark less. both (B) and (C). to counteract the reactance voltage and the cross-magnetizi ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Tap changer is generally provided in power transformer. earthing transformer. current transformer. voltage transformer. power transformer. earthing transformer. current transformer. voltage transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer maximum flux density is not constant, the eddy current loss varies as f² f V² V f² f V² V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer, the frequency of a voltage at the secondary is equal to primary. any of the above. less than primary. greater than the primary. equal to primary. any of the above. less than primary. greater than the primary. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eg (generated emf) and Eb (back emf) both are different. none of above. changes. same. different. none of above. changes. same. ANSWER DOWNLOAD EXAMIANS APP
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