Power Systems
Deaerative heating is done to

 heat the feed water.
 remove dissolved.
 heat the steam.
  remove dissolved gases in water.

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Power Systems
The skin effect shows that

 current density is more at the centre of the condutor
 current density is lower at the surface of the condutor
 current density is more at the surface of the condutor
 the distribution of AC current is uniform through the cross section of the conductor

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