Electrical Machines In DC motors, under trailing pole tips, flux density will_______ ? None of these increase either increase or decrease decrease None of these increase either increase or decrease decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Open circuit test on transformer gives both 1and 2 eddy current loss hysteresis loss copper loss both 1and 2 eddy current loss hysteresis loss copper loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by the armature of DC motor is directly proportional to The voltage across the terminals. None of above. The speed of motor. The torque required. The voltage across the terminals. None of above. The speed of motor. The torque required. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At slip s = 1 torque developed in machine is maximum torque. none. starting torque. electromagnetic torque. maximum torque. none. starting torque. electromagnetic torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The material used for commutator brushes is mostly cast iron. carbon. mica. copper. cast iron. carbon. mica. copper. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following represents the operating region of slip in a 1-phase induction motor? 0 < S < 2 -1 < S < 1 0 < S < 1 -2 < S < 2 0 < S < 2 -1 < S < 1 0 < S < 1 -2 < S < 2 ANSWER DOWNLOAD EXAMIANS APP
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