Electrical Machines For the above problem, find the induced voltage of an alternator of it is to deliver a load of 100 A at power factor of 0.8 lagging with terminal voltage of 200 V. 220 V. 225 V. 230 V. 222 V. 220 V. 225 V. 230 V. 222 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To eliminate 5th harmonic in the induced voltage phase breadth should be 72° 36° 18° 30° 72° 36° 18° 30° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines stepped cores are used in transformers in order to reduce iron loss. volume of iron. reluctance of core. volume of copper. iron loss. volume of iron. reluctance of core. volume of copper. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Due to magnetic saturation, the flux per pole in a DC machine without brush shift decreases in both generators and the motors with load. increases in both the generators and the motors with load. increases in generators but decreases in motor with load. decreases in generators and increases in motor with load. decreases in both generators and the motors with load. increases in both the generators and the motors with load. increases in generators but decreases in motor with load. decreases in generators and increases in motor with load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The starting resistance of DC motor is generally Infinitely large. Low. 1000 ohms. around 500 ohms. Infinitely large. Low. 1000 ohms. around 500 ohms. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 220 V dc machine has an armature resistance of 1Ω.If the full-load current is 20 A, the differenc in the induced voltages when the machine is running as a motor and as a generator is zero 50 V 40 V 20 V zero 50 V 40 V 20 V ANSWER DOWNLOAD EXAMIANS APP
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