Electrical Machines
A short circuit test on a transformer gives

 copper loss at half load.
 copper loss at full load.
 copper loss at over load.
  copper loss at any load.

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

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

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