Electrical Machines A 220 V DC generator is run at full speed without any excitation. The open circuit voltage will be about 2 V. 220 V. about 50 V. zero. about 2 V. 220 V. about 50 V. zero. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The air gap between the yoke and armature is dc machine is kept very small to achieve a stronger magnetic field. to avoid locking of the armature. to avoid over heating. All of these to achieve a stronger magnetic field. to avoid locking of the armature. to avoid over heating. All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction in dc motor results decrease in speed. short circuit. increase in speed. open circuit. decrease in speed. short circuit. increase in speed. open circuit. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Hysteresis loop represents the area of hysteresis loss eddy current loss copper loss total iron losses hysteresis loss eddy current loss copper loss total iron losses 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 10Ω 50Ω 100Ω 200Ω 10Ω 50Ω 100Ω 200Ω ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum power will be developed when back emf is equal to supply voltage. All of these half of the supply voltage. double the supply voltage. equal to supply voltage. All of these half of the supply voltage. double the supply voltage. ANSWER DOWNLOAD EXAMIANS APP
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