Electrical Machines What will be the maximum power factor of an induction motor for dispersion coefficient of 0.05? 1.1. 0.05. 20. 0.905. 1.1. 0.05. 20. 0.905. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 250 volt dc series motor having an armature resistance of 0.2 Ω takes a load current of 60 A. What will be the torque produced at the shaft of the motor? Consider brush drop of 1V. can not be determined. 234.76 N-m. 266.20 N-m. 133.22 N-m can not be determined. 234.76 N-m. 266.20 N-m. 133.22 N-m ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An ideal synchronous motor has no starting torque because rotor winding is highly reactive. relative velocity between the stator and rotor mmf’s is zero. rotor is made up of salient poles. relative velocity between stator and rotor mmf’s is not zero. rotor winding is highly reactive. relative velocity between the stator and rotor mmf’s is zero. rotor is made up of salient poles. relative velocity between stator and rotor mmf’s is not zero. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The basic function of a transformer is to change the level of the voltage the frequency the power level the power factor the level of the voltage the frequency the power level the power factor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Width of a carbon brush should be equal to the width of the 1 to 2 commutator segment. the width more than 3 commutator segment. the width of the 2 to 3 commutator segment. less than the width of commutator segment. the width of the 1 to 2 commutator segment. the width more than 3 commutator segment. the width of the 2 to 3 commutator segment. less than the width of commutator segment. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The polarity of a DC generator can be reversed by reversing the field current. increasing field current. any of above. reversing field electric current as well as direction of rotation. reversing the field current. increasing field current. any of above. reversing field electric current as well as direction of rotation. ANSWER DOWNLOAD EXAMIANS APP
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