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A synchronous motor operates at 0.8 pf lagging. If the field current of the motor is continuously increased | |
A. | the power factor decreases upto a certain value of the field current and there-after it increases. [Wrong Answer] |
B. | the armature current increases upto a certain value of the field current and thereafter it decreases. [Wrong Answer] |
C. | the power factor increases opto a certain value of field current and thereafter it decreases. [Wrong Answer] |
D. | the armature current decreases upto a certain value of field current and there after it increases. [Wrong Answer] |
E. | both (e) and (d). [Correct Answer] |