Electrical Machines
In a DC generator the actual flux distribution depends upon

  all of above.
  shape of the pole shoe.
 size of air gap.
  clearance between tips of the adjacent pole shoes.

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Electrical Machines
If two 8-pole dc machines of identical armature sare wound, one with lap winding and the other with wave winding, then

 wave-wound machine will have more rated voltage and less current
 lap-wound machine will have more rated voltage and less current
 wave-wound machine will have more rated current and more voltage
 lap-wound machine will have more rated voltage and more current

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