Electrical Machines
The coil spam

 can never be equal to pole pitch.
 must be exactly equal to people pitch.
 none of above.
  may or may not be exactly equal to people pitch.

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Electrical Machines
A belt-driven cumulatively-compound dc generator is delivering power to the dc mains. If the Belt snaps then the machine will run as a

 differentially compounded motor in the opposite direction
 differentially compounded motor in the same direction
 cumulative compounded motor in opposite direction
 cumulative compounded motor in the same direction

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

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