Electrical Machines Open circuit test on transformer gives hysteresis loss copper loss eddy current loss both 1and 2 hysteresis loss copper loss eddy current loss both 1and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If starter is not used with large DC motor for starting, it will provide execessive voltage drop in line. draw a starting current many times its rated full load current. all of above. damage the armature and commutator. provide execessive voltage drop in line. draw a starting current many times its rated full load current. all of above. damage the armature and commutator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature of a DC motor is laminated to reduce hysteresis loss. friction and windage loss. copper loss. eddy current loss. hysteresis loss. friction and windage loss. copper loss. eddy current loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction in a DC machine makes an angle of 90° with the main pole axis. is in direct opposition to the main poles. is in the same direction as the main poles. makes an angle with the main pole axis which is load dependent. makes an angle of 90° with the main pole axis. is in direct opposition to the main poles. is in the same direction as the main poles. makes an angle with the main pole axis which is load dependent. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On what factors the speed of dc motor depends? Armature current Ia. All of these. Applied voltage. Field flux. Armature current Ia. All of these. Applied voltage. Field flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Value of specific electric loading of Induction motor is in the range of 40 - 400 ampere conductor / metre. 30000 - 100000 ampere conductor / metre. 5000 - 45000 ampere conductor / metre. 400 - 4000 ampere conductor / metre. 40 - 400 ampere conductor / metre. 30000 - 100000 ampere conductor / metre. 5000 - 45000 ampere conductor / metre. 400 - 4000 ampere conductor / metre. ANSWER DOWNLOAD EXAMIANS APP
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