Electrical Machines Due to magnetic saturation, the flux per pole in a DC machine without brush shift increases in generators but decreases in motor with load. increases in both the generators and the motors with load. decreases in generators and increases in motor with load. decreases in both generators and the motors with load. increases in generators but decreases in motor with load. increases in both the generators and the motors with load. decreases in generators and increases in motor with load. decreases in both generators and the motors with load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature of DC motor is laminated to reduce the mass. to reduce the inductor. to reduce the eddy current loss. to reduce the hysteresis loss. to reduce the mass. to reduce the inductor. to reduce the eddy current loss. to reduce the hysteresis loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slip speed is the difference of actual rotor speed and synchronous speed. sum of synchronous and rotor speeds. difference of synchronous speed and actual rotor speed. half of the sum of synchronous and rotor speeds. difference of actual rotor speed and synchronous speed. sum of synchronous and rotor speeds. difference of synchronous speed and actual rotor speed. half of the sum of synchronous and rotor speeds. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When a synchronous motor is running at synchronous speed, the damper winding produces eddy current torque. both 1 and 2. damping torqe. no torque. eddy current torque. both 1 and 2. damping torqe. no torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A voltmeter gives 120 oscillations per minute when connected to the rotor of an induction motor. The frequency is 50Hz. The slip of the motor is 2% 4% 25% 5% 2% 4% 25% 5% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 2 pole lap winding dc machine , the resistance of one conductor is 2Ω and total number of conductors is 100. Find the total resistance 200Ω 10Ω 50Ω 100Ω 200Ω 10Ω 50Ω 100Ω ANSWER DOWNLOAD EXAMIANS APP
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