Electrical Machines The current drawn by a 220 V DC series motor of armature resistance 0.5Ω and back back emf 200 V is 400 A. 40 A. 440 A. 44 A. 400 A. 40 A. 440 A. 44 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Generator works on the principle of production None of these dynamically induced emf. both A and B. static induced emf. None of these dynamically induced emf. both A and B. static induced emf. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole dc generator is running at 1500 rpm the frequency of current in the armature winding is 100Hz. 50Hz. 150Hz. 200Hz. 100Hz. 50Hz. 150Hz. 200Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of motors are preferred in lifts? None of these DC series motors. DC compound motors. DC shunt motors. None of these DC series motors. DC compound motors. DC shunt motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a given torque, reducing divertor resistance of a DC series motor Increase in speed but armature currnet remains the same. Decrease in speed but armature current remains the same. Increase in speed demanding more armature current. Decrease in speed demanding less armature current. Increase in speed but armature currnet remains the same. Decrease in speed but armature current remains the same. Increase in speed demanding more armature current. Decrease in speed demanding less armature current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The flux is maximum in the following part of a DC motor: under the interpole. under trailing pole tip. pole core. under leading pole tip. under the interpole. under trailing pole tip. pole core. under leading pole tip. ANSWER DOWNLOAD EXAMIANS APP
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