Electrical Machines If the applied voltage to a dc machine is 230 V, then the back emf, for maximum power developed, is 200 V 115 V 230 V 460 V 200 V 115 V 230 V 460 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In speed control of DC shunt motor by varying field flux, what may be the value of field regulator? 100 ohm 2 ohm. 10 ohm 0.2 ohm 100 ohm 2 ohm. 10 ohm 0.2 ohm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Methods of synchronizing of alternator may be done by all of these. all bright lamp method. all dark lamp method. one dark two bright. all of these. all bright lamp method. all dark lamp method. one dark two bright. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The function of field regulator in a DC compound motor is to control field current. vary the armature resistance. limit the armature current. none of above. control field current. vary the armature resistance. limit the armature current. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature voltage control is considered suitable for a DC motor driven at constant power. speed. current. torque. power. speed. current. torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In salient pole synchronous machine, the reluctance power varies as sin2δ sinδ cosδ cos2δ sin2δ sinδ cosδ cos2δ ANSWER DOWNLOAD EXAMIANS APP
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