Electrical Machines If terminal voltage of one 1000 rpm shunt motor is reduced to half the speed of the motor will be 250 rpm 500 rpm 1000 rpm 2000 rpm 250 rpm 500 rpm 1000 rpm 2000 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Find the reactance voltage when current is changed from -2A to 2A in 4 sec and self inductance is 1H? 2 V 4 V 0 V 1 V 2 V 4 V 0 V 1 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A three phase 400 V, 6 pole, 50 Hz, squirrel cage induction motor is running at a slip of 5%. The speed of stator magnetic field with respect to rotor magnetic field and speed of rotor w.r.t stator magnetic field are zero , - 50 rpm. 1000 rpm, 950 rpm. zero, 950 rpm. 1000 rpm, - 50 rpm. zero , - 50 rpm. 1000 rpm, 950 rpm. zero, 950 rpm. 1000 rpm, - 50 rpm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Find the synchronous reactance of alternators in which a given field current of 200 A on short circuit and a generated emf of 50 V on open circuit. Armature resistance is 0.1 ohm 1Ω. 0.23Ω. 0.5Ω. 0.25Ω. 1Ω. 0.23Ω. 0.5Ω. 0.25Ω. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the armature windings are placed on the rotor because of the necessity for electromechanical energy conversion commutation development of torque generation of voltage electromechanical energy conversion commutation development of torque generation of voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following voltage regulator is preferred for providing large values of load current? Transistor series regulator. Zener diode shunt regulator. Transistor shunt regulator. None of these Transistor series regulator. Zener diode shunt regulator. Transistor shunt regulator. None of these ANSWER DOWNLOAD EXAMIANS APP
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