Electrical Machines In normal dc machines operating at full-load conditions, the most powerful electromagnet is armature winding interpole winding field winding interpole and compensating windings together armature winding interpole winding field winding interpole and compensating windings together ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the armature windings are placed on the rotor because of the necessity for development of torque generation of voltage electromechanical energy conversion commutation development of torque generation of voltage electromechanical energy conversion commutation ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Diverters are used only in series motors None of these either of these shunt motors series motors None of these either of these shunt motors ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Open circuit test on transformer gives copper loss hysteresis loss both 1and 2 eddy current loss copper loss hysteresis loss both 1and 2 eddy current loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If s is the slip and f is the supply frequency of an induction motor, the frequency of rotor current is given by s2. sf. sf / 2. f / s. s2. sf. sf / 2. f / s. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a practical synchronous motor the pull out torque will occur when the torque angle is nearly equal to 0°. 45°. 30°. 75°. 0°. 45°. 30°. 75°. ANSWER DOWNLOAD EXAMIANS APP