Electrical Machines
Demagnetization effects which of the following?

 both B and C
 commutation
 reduction in main field flux
 reduces the terminal voltage

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Electrical Machines
Where the shunt generators are widely used?

  Where a constant voltage is required over a narrow load range.
 Where voltage variation is needed over a wide load range.
 Where often load fluctuation is occurred.
 Where the load is very high.

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