Electrical Machines Find the reactance voltage when current is changed from -2A to 2A in 4 sec and self inductance is 1H? 4 V 0 V 1 V 2 V 4 V 0 V 1 V 2 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Induction motor operation depends on rotating magnetic field. stationary magnetic field. either of these. None of these rotating magnetic field. stationary magnetic field. either of these. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a dc machine 4 pole lap winding is used. The number of parallel paths are? 4 8 2 1 4 8 2 1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, armature reaction refers to what? Effect of armature flux on the main field flux. None of these Effect of field flux on the armature flux. Effect of armature flux on the load. Effect of armature flux on the main field flux. None of these Effect of field flux on the armature flux. Effect of armature flux on the load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the source voltage of a DC motor is increased, which of the following will decrease? Starting torque, operating speed, full load current. Starting torque. Full load current. Operating speed. Starting torque, operating speed, full load current. Starting torque. Full load current. Operating speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3-phase induction motor, if the supply voltage and frequency are reduced by the same ratio, then slip at which maximum torque occurs is more and maximum torque remains constant less and maximum torque decreases more and maximum torque decreases less and maximum torque increases more and maximum torque remains constant less and maximum torque decreases more and maximum torque decreases less and maximum torque increases ANSWER DOWNLOAD EXAMIANS APP
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