Electrical Machines
A synchronous motor will deliver maximum power when

  input power factor is unity.
  load angle is equal to internal angle θ.
  load angle is 45°.
  load angle is 0°.

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Electrical Machines
In a step down transformer which one of the following statements is true?

 Secondary current is less than primary current.
 Secondary power is less than primary power.
  Number of secondary turns is less than primary turns.
 Number of secondary turns is more than that of primary.

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