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? 10% 41% 11% 21% 10% 41% 11% 21% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine, the angle between the stator and rotor fields is 0o. 90o. dependent upon the load. 180o. 0o. 90o. dependent upon the load. 180o. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In normal dc machines operating at full-load conditions, the most powerful electromagnet is field winding armature winding interpole and compensating windings together interpole winding field winding armature winding interpole and compensating windings together interpole winding ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 100/10, 50 VA double winding transformer is converted to 100/110 V auto transformer. The rating of auto transformer is 500 VA 550 VA 110 VA 100 VA 500 VA 550 VA 110 VA 100 VA ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of induction motors the ratio of length to pole pitch for minimum cost, is taken as 2 to 3. 3 to 5. 1.0. 1.5 to 2. 2 to 3. 3 to 5. 1.0. 1.5 to 2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the rotor speed, in a synchronous machine, becomes more than the synchronous speed during hunting, the damper bars develop induction generator torque. induction motor torque. synchronous motor torque. DC motor torque. induction generator torque. induction motor torque. synchronous motor torque. DC motor torque. ANSWER DOWNLOAD EXAMIANS APP
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