Electrical Machines A 8 pole, 50 Hz single phase induction motor is running at 690 rpm. Its slip with respect to forward field is 0.08 -1.92 1.92 -0.08 0.08 -1.92 1.92 -0.08 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A large series motor is never started without some mechanical load on it because otherwise it will open fuse or circuit breaker. produce sparking at brushes. draw too much current. develop excessive speed and damage itself. open fuse or circuit breaker. produce sparking at brushes. draw too much current. develop excessive speed and damage itself. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an alternator the voltage generated per phase is proportional to frequency of waveform. All of these number of turns in coil. flux per pole. frequency of waveform. All of these number of turns in coil. flux per pole. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Voltage regulation of transformer is given by (V2 - E2) / V2 (V2 - E2) / E2 (E2 - V2) / E2 (E2 - V2) / V2 (V2 - E2) / V2 (V2 - E2) / E2 (E2 - V2) / E2 (E2 - V2) / V2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hysteresis loss is proportional to f. f2. f1.5. f3. f. f2. f1.5. f3. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature of a DC motor is laminated to reduce eddy current loss. friction and windage loss. hysteresis loss. copper loss. eddy current loss. friction and windage loss. hysteresis loss. copper loss. ANSWER DOWNLOAD EXAMIANS APP
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