Electrical Machines Two DC series motors are connected in series and are driving the same mechanical load. If the motors are now connected in parallel the speed will become double. one fourth. half. 4 times. double. one fourth. half. 4 times. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a given torque, reducing diverter resistance of a DC series motor causes decrease in speed but armature current remains the same. increase in speed but armature currnet remains the same. increase in speed demanding more armature current. decrease in speed demanding less armature current. decrease in speed but armature current remains the same. increase in speed but armature currnet remains the same. increase in speed demanding more armature current. decrease in speed demanding less armature current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Field divertor method of speed control of a DC series motor gives speed above rated one due to reduction of Line current. None of above. Armature current. Field current. Line current. None of above. Armature current. Field current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The field divertor resistance for a DC series motor is of order of 50 Ω 10 Ω 0.1 Ω 100 Ω 50 Ω 10 Ω 0.1 Ω 100 Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If an additional resistance is connected in series with a DC series motor operating at rated speed, the speed of the motor will Reduce. Remain unaltered. Increase. Oscillate around the normal speed. Reduce. Remain unaltered. Increase. Oscillate around the normal speed. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS