Electrical Machines If the excitation is critical, the power factor of the alternator is leading power factor. None of these unity power factor. lagging power factor. leading power factor. None of these unity power factor. lagging power factor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the increase in the torque expressed as percentage of initial torque, if current drawn by the dc series motor is increased from 10A to 11A? 41% 21% 10% 11% 41% 21% 10% 11% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Compensating winding is placed in the pole shoe All of these armature core main field pole shoe All of these armature core main field ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machines shape of net flux density is? peaky in nature sine wave flat tapped or trapezoidal saddle shape peaky in nature sine wave flat tapped or trapezoidal saddle shape ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Number of tappings for each equalizer ring is equal to number of commutator segments. number of poles. number of parallel paths. number of pole pairs. number of commutator segments. number of poles. number of parallel paths. number of pole pairs. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The size of inter poles is small as compared to main poles. What is the reason? In order to get saturated. In order to get more flux. In order to not to get saturated. All of these In order to get saturated. In order to get more flux. In order to not to get saturated. All of these ANSWER DOWNLOAD EXAMIANS APP
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