Electrical Machines A DC motor with armature resistance of 0.5 ohms connected directly to a 220 Volt supply. If the armature is stationary then the current flowing through the armature is 250 A. 570 A. 440 A. 340 A. 250 A. 570 A. 440 A. 340 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The flux involved in the emf equation of a transformer has total value. maximum value. rms value. average value. total value. maximum value. rms value. average value. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Demagnetization effects which of the following? commutation reduces the terminal voltage both B and C reduction in main field flux commutation reduces the terminal voltage both B and C reduction in main field flux ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Pole changing methods are suitable only for ___________ type induction motor. wound. cage. linear. none of these. wound. cage. linear. none of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC generator beyond critical resistance will generate maximum power. no voltage. maximum voltage. maximum current. maximum power. no voltage. maximum voltage. maximum current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In shunt dc motor the direction of rotation of the motor will reversed. When none of above. only armature terminals are reversed. only field terminals are changed. either field terminals are reversed or armature terminals are reversed. none of above. only armature terminals are reversed. only field terminals are changed. either field terminals are reversed or armature terminals are reversed. ANSWER DOWNLOAD EXAMIANS APP
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