Electrical Machines A DC series motor drawing an armature current of Ia is operating under saturated magnetic conditions. The torque developed in the motor is proportional to 1/Ia I/Ia2 Ia Ia2 1/Ia I/Ia2 Ia Ia2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machine armature windings are placed on rotor because of the necessity for commutation. development of torque. electromechanical energy conversion. generation of voltage. commutation. development of torque. electromechanical energy conversion. generation of voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field connection of a DC Shunt Motor is changed then it will run in same direction. motor will not run. it will run in opposite direction. it will run in same direction by slowly. it will run in same direction. motor will not run. it will run in opposite direction. it will run in same direction by slowly. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two single-phase alternators operating in parallel have induced EMFs on open circuit of 230∠0° and 230∠10° volts and respective reactance of j2 Ω j3 Ω calculate the terminal voltage 200 V. 223.V. 300 V. 150 V. 200 V. 223.V. 300 V. 150 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor power output of 3-phase induction motor is 15 KW. The rotor copper losses at a slip of 4% will be 600 W 700 W 625 W 650 W 600 W 700 W 625 W 650 W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following statements is/are correct statements? EMF per turn in both the windings are equal EMF per turn in HV winding is more than EMF per turn in LV winding All of these EMF per turn in HV winding is less than EMF per turn in LV winding EMF per turn in both the windings are equal EMF per turn in HV winding is more than EMF per turn in LV winding All of these EMF per turn in HV winding is less than EMF per turn in LV winding ANSWER DOWNLOAD EXAMIANS APP
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