Electrical Machines Armature reaction in DC generators will result in reduction in generated emf. increase in slip. short circuit. open circuit. reduction in generated emf. increase in slip. short circuit. open circuit. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator on no-load, the air gap flux distribution in space is pulsating. flat topped. triangular. sinusoidal. pulsating. flat topped. triangular. sinusoidal. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine the armature mmf is stationary with respect to field poles. stationary with respect to armature. rotating with respect to field poles as well as armature. rotating with respect to field poles. stationary with respect to field poles. stationary with respect to armature. rotating with respect to field poles as well as armature. rotating with respect to field poles. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the speed of a dc motor increases with load torque, then it is a series motor comulatively compounded motor differentially compounded motor permanent magnet motor series motor comulatively compounded motor differentially compounded motor permanent magnet motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature of DC machine is made of silicon steel lamination to increase the permeability. reduce both eddy current and hysteresis loss. reduce eddy current loss only. reduce hysteresis loss only. increase the permeability. reduce both eddy current and hysteresis loss. reduce eddy current loss only. reduce hysteresis loss only. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ, 6 pole, 50 Hz IM has a rotor speed of 987 rpm find rotor frequency? 0.70 Hz. 0.75 Hz. 0.65 Hz. 60 Hz. 0.70 Hz. 0.75 Hz. 0.65 Hz. 60 Hz. ANSWER DOWNLOAD EXAMIANS APP
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