Electrical Machines
The short circuit test on a transformer is conducted to obtain

 eddy current loss.
 hysteresis loss.
  copper losses.
 core loses only.

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Electrical Machines
If the frequency of input voltage of a transformer is increased keeping the magnitude of voltage unchanged, then

 Ph will decrease but Pe will remain same
 both hysteresis loss(Ph) and eddy current loss(Pe) will increase
 Ph will increase but Pe will decrease
 Pe will increase but Ph will decrease

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