Electrical Machines The torque speed characteristics of a AC servomotor is approximately hyperbola linearised parabola any of the above hyperbola linearised parabola any of the above ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC Shunt Motor has disadvantage(s) of constant speed. less expensive. none of above. not suitable for rapidly changing loads. constant speed. less expensive. none of above. not suitable for rapidly changing loads. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutator in DC generator is used for collecting of current increase efficiency convert AC armature current in to DC reduce losses collecting of current increase efficiency convert AC armature current in to DC reduce losses ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For an ideal transformer the winding should have minimum resistance on primary side and maximum resistance on secondary side equal resistance on primary and secondary side no ohmic resistance on either side maximum resistance on primary side and least resistance on secondary side minimum resistance on primary side and maximum resistance on secondary side equal resistance on primary and secondary side no ohmic resistance on either side maximum resistance on primary side and least resistance on secondary side ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Example of double excited machine is Synchronous motor. DC Shunt Motor None of these Both are correct. Synchronous motor. DC Shunt Motor None of these Both are correct. 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
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