Electrical Machines A 4 pole dc generator is running at 1500 rpm the frequency of current in the armature winding is 50Hz. 150Hz. 200Hz. 100Hz. 50Hz. 150Hz. 200Hz. 100Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If in DC Shunt Motor the flux is reduced suddenly to zero, then the motor will attain dangerously high speed. the speed of motor will be reduced. the motor will come to stop. the armature current will reduce. the motor will attain dangerously high speed. the speed of motor will be reduced. the motor will come to stop. the armature current will reduce. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The effect of ------------------ on main field flux is armature reaction? All of these armature current armature mmf armature flux All of these armature current armature mmf armature flux ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Star - delta method of starting of motor is not possible in case of low horse power motor. single phase induction motor. high torque motor. high speed motor. low horse power motor. single phase induction motor. high torque motor. high speed motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For small value armature current Ia the torque developed by a DC series motor is proportional to Ia. Ia2. √Ia. 1/Ia. Ia. Ia2. √Ia. 1/Ia. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At stand still condition the value of slip is infinite value finite value 0 1 infinite value finite value 0 1 ANSWER DOWNLOAD EXAMIANS APP
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