Electrical Machines If the armature electric current is increased to double its previous value, and the time of commutation is halved, how will the reactance voltage vary? It will be halved. It will be doubled. It will becomes four times. It will remain the same. It will be halved. It will be doubled. It will becomes four times. It will remain the same. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC generator beyond critical resistance will generate no voltage. maximum power. maximum voltage. maximum current. no voltage. maximum power. maximum voltage. maximum current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If two 8-pole dc machines of identical armature sare wound, one with lap winding and the other with wave winding, then lap-wound machine will have more rated voltage and less current wave-wound machine will have more rated current and more voltage wave-wound machine will have more rated voltage and less current lap-wound machine will have more rated voltage and more current lap-wound machine will have more rated voltage and less current wave-wound machine will have more rated current and more voltage wave-wound machine will have more rated voltage and less current lap-wound machine will have more rated voltage and more current ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a dc machine 4 pole lap winding is used. The number of parallel paths are? 2 4 8 1 2 4 8 1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For which of the following loads, armature reaction is magnetizing in nature? pure capacitive load pure resistive load pure inductive load None of these pure capacitive load pure resistive load pure inductive load None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When a transformer is loaded, the secondary terminal voltage drops. That means power factor is unity. leading. zero. lagging. unity. leading. zero. lagging. ANSWER DOWNLOAD EXAMIANS APP
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