Q.The armature of a dc machine is made of silicon steel lamination to

  • AReduce hysteresis loss only 
  • BReduce the eddy current loss only
  • CIncrease the permeability
  • DReduce both hysteresis and eddy current loss
Correct Answer : (D)

Reduce both hysteresis and eddy current loss

Hints :

The armature of a dc machine is made of silicon steel lamination to Reduce both hysteresis and eddy current loss.

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