Electrical Machines In DC motors, under trailing pole tips, flux density will_______ ? decrease increase None of these either increase or decrease decrease increase None of these either increase or decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous generator a synchronous dead load (lamp, furnaces etc) has no ____________ hence it has no natural frequency of oscillation. synchronizing power co efficient. damping torque. restoring torque. mechanical rotatory system. synchronizing power co efficient. damping torque. restoring torque. mechanical rotatory system. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, electric current to the external circuit from armature is given through slip rings. none of above. solid connection. commutator. slip rings. none of above. solid connection. commutator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What will be the eddy current loss if the supply frequency of a transformer becomes double? Doubled. Four times. Remains same. Eight times. Doubled. Four times. Remains same. Eight times. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A commutator in dc machine provide ----------------- rectification? half wave controlled full wave full wave controlled half wave half wave controlled full wave full wave controlled half wave ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3 - Φ induction motor power factor at starting is low as compared to that while running. power factor at starting in the same as that while running. none of them. power factor at starting is high as compared to that while running. power factor at starting is low as compared to that while running. power factor at starting in the same as that while running. none of them. power factor at starting is high as compared to that while running. ANSWER DOWNLOAD EXAMIANS APP
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