Electrical Machines
A synchorous generator connected to an infinite bus is over excited. Considering only the reactive power from the point view of the system the machine acts as

  None of these.
 A capacitor.
 A resistor.
 an inductor.

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Electrical Machines
Which of the following is done in speed control of DC motor by field flux control?

 Inserting resistance to armature circuit and field circuit.
 Any of above.
 Inserting an additional resistance in the armature circuit.
 Inserting an additional resistance in the field circuit.

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