Electrical Machines Find the reactance voltage when current is changed from -2A to 2A in 4 sec and self inductance is 1H? 2 V 0 V 1 V 4 V 2 V 0 V 1 V 4 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, electric current to the external circuit from armature is given through commutator. slip rings. none of above. solid connection. commutator. slip rings. none of above. solid connection. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hunting in a synchronous cannot be due to variable load. variable frequency. variable supply voltage. windage friction. variable load. variable frequency. variable supply voltage. windage friction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction depends on which of the following? both 1 and 2 power factor of load magnitude of load current None of these both 1 and 2 power factor of load magnitude of load current None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following alternators contain large number of poles? Aame in both alternators. Turbo alternators. Hydro alternators. None of these Aame in both alternators. Turbo alternators. Hydro alternators. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The torque speed characteristics of a AC servomotor is approximately parabola any of the above linearised hyperbola parabola any of the above linearised hyperbola ANSWER DOWNLOAD EXAMIANS APP
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