Electrical Machines
Lap winding is prefered for which type of machines?

 low current and high voltage
 high current and high voltage
 low current and low voltage
 high current and low voltage

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

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

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