Electrical Machines Eg (generated emf) and Eb (back emf) both are changes. same. none of above. different. changes. same. none of above. different. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a given torque, reducing diverter resistance of a DC series motor causes decrease in speed demanding less armature current. increase in speed demanding more armature current. increase in speed but armature currnet remains the same. decrease in speed but armature current remains the same. decrease in speed demanding less armature current. increase in speed demanding more armature current. increase in speed but armature currnet remains the same. decrease in speed but armature current remains the same. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If we increase the rotor reactance value, the maximum torque will decrease None of these not changed increase decrease None of these not changed increase ANSWER DOWNLOAD EXAMIANS APP
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 Ia I/Ia2 Ia2 1/Ia Ia I/Ia2 Ia2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Reluctance and hysteresis motors are the types of which electrical motor? 1 - Φ synchronous motor. 3 - Φ induction motor. Stepper motor. DC motor. 1 - Φ synchronous motor. 3 - Φ induction motor. Stepper motor. DC motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines There are two 2-pole DC machines. Main field axis of machine A is horizontal and that of B is vertical. It is preferable to purchase machine A none of these any of the two machines machine B machine A none of these any of the two machines machine B ANSWER DOWNLOAD EXAMIANS APP
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