Electrical Machines The armature voltage control is considered suitable for a DC motor driven at constant power. torque. speed. current. power. torque. speed. current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction in DC generators will result in short circuit. reduction in generated emf. increase in slip. open circuit. short circuit. reduction in generated emf. increase in slip. open circuit. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 250 volt dc series motor having an armature resistance of 0.2 Ω takes a load current of 60 A. What will be the torque produced at the shaft of the motor? Consider brush drop of 1V. 133.22 N-m can not be determined. 266.20 N-m. 234.76 N-m. 133.22 N-m can not be determined. 266.20 N-m. 234.76 N-m. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous motor the torque is proportional to P² Power P 1/P² 1/P P² Power P 1/P² 1/P ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Ward Leonard control is provides speed control In one direction only. Below rated speed. In both direction. Above rated speed. In one direction only. Below rated speed. In both direction. Above rated speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of DC shunt motor if load is reduced DC Shunt Motor The speed will increase in proportion to reduction in load. The speed will increase abruptly. The speed will remains almost constant. DC Shunt Motor The speed will increase in proportion to reduction in load. The speed will increase abruptly. The speed will remains almost constant. ANSWER DOWNLOAD EXAMIANS APP
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