Electrical Machines
A lap wound DC machine has 400 conductors and 8 poles. The voltage induced per conductor is 2 volts. The machine generates a voltage of

 200 V.
 100 V.
 800 V.
 400 V.

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

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

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Electrical Machines
For a single phase capacitor start induction motor which of the following is valid?

 Direction of rotation cannot be changed.
 None of these.
  Rotation can be changed by reversing main winding terminals.
 Rotation can be changed by interchanging supply terminals.

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